indian patents: materials from plan1t sources - niscair 1(1) (patent scan).pdf · indian patents:...

39
* Indian Patents: Materials from Plan1t Sources With its tropical forests and extreme climatic cong.itions, India provides suitable climatic conditions for the growth of biological resources which is reflected in the abundant availability and diversity of such resources, especially plant-based resources. Today, major companies throughout the world are making considerable investments in the stuc\y:, identification, extraction, isolation of active materials from plant sources and in improv- ing and establishing effective uses of known properties and finding newer uses of the known compounds and development of new compounds and extraction of fractions from this source. The case of "Neem" is a pointer in this direction. All these efforts would be reflected in generat ion of a number of patents in this area in the years to come. This paper makes a brief analysis of patenting activity relating to materials from plant sources based on the patents published in India during the period 1 April 1972 to 28 February 1995 and also provides bibliographic details about these patents for the benefit of readers. It should be noted that in order to obtain a patent, the invention must be novel, shou ld involve an inventive step and should be capable of industrial application. "Novel" means that an invention must contribute something over and above what is already known in the art while "inventive step" means the invention should not be obvious to a person skilled in the art and "industrial application" means that the invention can be put into practice for industrial production. Of a total of 104 patents published during the period 1972-1995, 101 are for the inventions relating to materials from the plant sources, nearly all t he patents except 3 relate to medicinal group for the processes for extraction and isolation of extracts, compounds and application of plant materials. Nearly 72% of the patents are filed mainly by Indians while the remaining 28% are filed by the foreign firms. CSIR accounts for nearly 35% ofthe total patents and is the major contributor with 36 patents out of 72 patents published by India. Amongst the foreign patentees, major contribution is from the industry. There are 14 patents on 'Neem', out of which 12 are by India and two by foreign patentee . . Cunlributed by Intellectual Property Management Division, CSIR

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Page 1: Indian Patents: Materials from Plan1t Sources - NISCAIR 1(1) (Patent Scan).pdf · Indian Patents: Materials from Plan1t Sources * ... isolation of active materials from plant sources

* Indian Patents: Materials from Plan1t Sources

With its tropical forests and extreme climatic cong.itions, India provides suitable climatic conditions for the growth of biological resources which is reflected in the abundant availability and diversity of such resources, especially plant-based resources.

Today, major companies throughout the world are making considerable investments in the stuc\y:, identification, extraction, isolation of active materials from plant sources and in improv­ing and establishing effective uses of known properties and finding newer uses of the known compounds and development of new compounds and extraction of fractions from this source. The case of "Neem" is a pointer in this direction. All these efforts would be reflected in generation of a number of patents in this area in the years to come.

This paper makes a brief analysis of patenting activity relating to materials from plant sources based on the patents published in India during the period 1 April 1972 to 28 February 1995 and also provides bibliographic details about these patents for the benefit of readers. It should be noted that in order to obtain a patent, the invention must be novel, should involve an inventive step and should be capable of industrial application. "Novel" means that an invention must contribute something over and above what is already known in the art while "inventive step" means the invention should not be obvious to a person skilled in the art and "industrial application" means that the invention can be put into practice for industrial production.

Of a total of 104 patents published during the period 1972-1995, 101 are for the inventions relating to materials from the plant sources, nearly all the patents except 3 relate to medicinal group for the processes for extraction and isolation of extracts, compounds and application of plant materials. Nearly 72% of the patents are filed mainly by Indians while the remaining 28% are filed by the foreign firms. CSIR accounts for nearly 35% ofthe total patents and is the major contributor with 36 patents out of 72 patents published by India. Amongst the foreign patentees, major contribution is from the industry. There are 14 patents on 'Neem', out of which 12 are by India and two by foreign patentee .

. Cunlributed by Intellectual Property Management Division, CSIR

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PATENT SCAN

Abbreviations used:

AP

APPNO

CC

CCRIMH

CSIR

DEV

DRDO

GOvr

IARl

ICAR

ICMR

Ap'plicant

Application No

Country Code

Central Council for Research in Indian Medicine & Ayurveda

Council of Scientific & Industrial Research

Development

Defence Research and Development Organisations

Government

Indian Agricultural Research Institute

Indian Council of Agricultural Research

Indian Council of Medical Research

UIRA Indian Jute Industry Research Association

INC Incorporated

IND Industry

INDS Industries

INST Institute

INT International

INTCLASS International Patent Classification

KK Kabushiki Kaisha

LAB Laboratory

PAT NO Patent No

PUB DATE Publication Date

Country Codes

AU Australia

CA Canada

DD E. Germany

DE Germany

FR France

GB United Kingdom

HU Hungary

IN India

IT Italy

JP Japan

ME Mexico

NL Netherlands

SU Russia

US USA

81887(IN)

81887

A61K027014

PUB DATE: 1()"08-75

APP DATE: 23-04-62

RAORR

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE A PROCESS FOR THE ISOLATION OF BLOOD-SUGAR LOWERING ACTIVE PRINCIPLE FROM THE FRUITS OF MOMORDICA CHARANTIA (V AR: KARELA)

17

A process for the isolation of blood-sugar lowering active principle from the fruits of Momordica Charantia (var: Karela) , herein called "Charantin", wherein an organic solvent extract of the

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18 ./ . INTELLEC. PROP. RIGHTS,JANUARY 1996

said whole, dried and powdered fruits is treated with alkali and this alkali treated extract is extracted with an organic solvent such as ether, benzene or chloroform of the active principle obtained from the organic solvent and by washing the organic solvent extract with water and evaporating or distilling of the solvent completely.

PAT NO/CC APPNO

APPLICANT

TITLE

85342 (IN)

085342

IARI

PUB DATE: 13-04-74

APP DATE : 27-11-62

IMPROVEMENTS IN OR RELATINC; TO THE PREPARATION OF DEHYDRATED FRUIT AND VEGtlABLE PULPS IN POWDER FORM FOR USE AS BABY FOODS OR AS NUTRITIONS

A process for dehydrating fruit and vegetable pulps which comprises the steps of removing the juice from said grated material, converting said material into pulp by cooking under pressure, screening said pulp through a sieve to separate coarser pulp thereform, concentrat­ing the finer pulp by heat treatment and adding a suitable chemical substance such as an alkali bisulphite to minimize deteriorative oxidative changes, dehydrating said concentrated lass in hot air till said mass is in a semi solid consistency, adding a sweetening agent and th ereafter drying and grinding the said mass.

PAT NO/CC APPNO

INTCIASS APPLICANT

TITLE

90813(IN) 090813

A61K027014

PUB DATE : 30-08-75 APP DATE : 14-11-63

CHATTERJEE MRS MUKHERJEE SR

PROCESS FOR ISOLATION OF MARCILIN

Process for the isolation of Marsilin a sedative and anti convulsant principle cornprising extracting the different parts or the whole plant of Marsilea species with solvents, concen trating th e extract by distillation or evaporation and separating the said Marsilin from the concentrated extract by chromatographic resolution.

PAT NO/CC APPNO

PRDATA

APPLICANT

TITLE

93241(DE) PUB DATE : 28-12-74 093241 APP DATE 10-04-64 640122 GB-00002839

KALI CHEMIE AG A PROCESS FOR OBTAINING ESTERS HAVING A SEDATIVE AND SPASMOLYfIC ACTION FROM THE ROOTS AND RHIZOMES 0 F VAL VERIANACEAE

A process for obtaining isovaleric acid esters which have a sedative and spasmolytic action from roots and rhizomes of al-erianceae, wherein the roots of rhizomes in a comminuted or powdered form are extracted at a temperature below 30°C, with a lipophilic solvent in the presence of a carboxylic acid or with carboxylic acid alone, if desired together with its

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PATENT SCAN 19

corresponding alkali metal or ammonium salts as buffer, in a pH range of 3-7, and wherein th e isov<l leric acid esters are isolated from the extract.

PAT NO/CC

APPNO

APPLICANT

TITLE

94766(IN) 094766

CSIR

PUB DATE : 26-01-74

APP DATE : 20-07-64

IMPROVEMENTS IN OR RELATING TO THE PREPARATION OF jATAMANSI ROOT OIL AND THE ISOLATION OF A CO UMARIN CONSTITUENT THEREFROM

An improved process for the p'reparation of jatamansi root oil and the coumarin constituent thereof which consists in extracting powdered jatamansi roots with petroleum ether (boiling r<lnge 40-60U

) at room temperature (20U to 35°C).

PAT NO/CC

APPNO

INT CLASS

APPLICANT

TITLE

l01627(1N) PUB DATE: 21-09-74

101627 APP DATE : 18-09-65

CSIR

A PROCESS FOR THE ISOLATION OF A BLOOD SUGAR LOWERING PRINCIPLE FROM THE SEEDS OF EUGENIA jAMBOLANA

A process for th e isolation 'of a blood sugar lowering principle from the seeds of Eugenia Jambolana which comprises the extraction of the dried powdered seeds with an organic solvent such as ethanol, concentration of the said extract to the consistency of a syrup; suspension of the concentrated extract in a solvent such as ethanol and treatment with an alkali such as KOH for <l period of two to four days; dilution of the alkali treated extract with water and extraction with an organic solvent such as ether; washing of the ether fraction with water and dilute acid such as HCl; concentration of the washed ether extract so as to obtain a solid extract; and purification of this solid extract by washing with petroleum ether and acetone, and crystal­lization from an organic solvent such as ethanol, resulting in isolation of the blood sugar lowering principle as greyish white powder.

PAT NO/CC

APPNO

INTCLASS

APPLICANT

TITLE

l02038(HU) PUB DATE: 10-05-75

102038 APP DATE : 13-10-65

A23LOOIOOO

BUDAPESTI MUSZAKI EGYETEM

PROCESS FOR THE PRODUCTION OF FIBERLESS GREEN PLANT EXTRACT

A process for the preparation of a substantially fibreless green plant extract of high nutritional v<llue, wherein comminuted green plant material is subjected to pressure to force a liquid th erefrom, the resulting press cake is wetted with an aqueous medium and subjected to furth er pressure to force further liquid therefrom not more than two times, the separated liquid is

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:.!() .I. INTELLEC. PHOP. mCI-frs, JANUAIN E)~(j

concentrated to a solid content of at least 40% chloroplast particles being separated from said liquid during concentration and recombin ed with the concentrated extract, and physiologically active substances be ing isolated if desired from the separated liquid prior to th e concentration process.

PAT NO/ CC APPNO

INTCLASS

APPLICANT

T ITLE

113603(SO) PUB DATE : 04-10-75

113603 APP DATE: 04-12-67

C07D043020

VSESOJUZNY NAUCHNO LSSLEDOVATELSKY INST

PROCESS FOR PREPARING ERGOMETRIN E PRODUC rN" G STRAIN OF ERG OT

A process for producing ergometrine comprising cultivating an ergometrine producing strain of ergot claviceps purpurea Tu!. in a nutrient medium of wort-agar of about 1.05 Sp.gr hav ing about 2% agar, said ergometrine producing strain of ergot, claviceps purpurea Tu!. be ing characterised by the following properties: on wort-agar medium forms loose wooly ae rial mycelium white or hellowish-grey in colour with a large number of spores, the mycelium forming dense smooth or wavy-wrinkled pe llicle, the medium not coloured on; Waksman's coml~ound medium aerial mycelium loose, white or grey in colour with few spores, pe ll icle less dense than on wort-agar and difficu lt to separate from medium, which is not coloured; on vi llogradsky's min eral medium and moistened cellulose no growth; spores on Waksman's medium and on wortagar medium, unicellular, oval, transparent, with·out perceptible $ sculp­ture, varying in size (l ength 4-10 J..l width 2.5-5 J..l.) , said strain producing ergometrin e in the ;1I110U llt of 90-100% of total ergot alkaloids, which constitutes 0.15% of the dry spurs by weigh t.

PAT NO/CC APPNO

APP LICANT

T ITLE

119087(1N) PUB DATE: 15-12-73

119087

CSIR

APP DATE : 19-12-83

AN IMPROVED METHOD FORTHE COMMERCIAL PRODUCTIO N OF RUTINE FROM FAGOPYRUM ESCULENTUMFAGOPYRUM TATARICUM EUCALYPTUS MACRORRHYNCHAAND OTHER PLANTS CONTAIN ING RUTIN

An improved process for the extraction of rutin involving direct extraction of Fagopyrum cscu{elltulIl , Fagopyru/"Il tataricum, Eucalyptus macrorrhyncha and other plants containing rutin with water characteri sed by extracting it with water in an autoclave by injecting s team to 10-20 lb ./sq . inch [or a period of 40-60 minutes.

PAT NO/CC APPNO

APPLICANT

121818(IN) PUB DATE: 03-03-73

121818 APP DATE: NA

GEORGEA

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TITLE

PJ\TENT SCJ\N

OIL KNOWN AS EUREL EXTRACTED FROM PLANT EN PTARORJUM ODORATUM f UR BURNS

~ 1

ProCl'SS o j l'xtracti n.g the oil kn own as 'Eurol' from plant EupatroYluJ11 Odomtul1I compris ing passing steam on th e leaves of said plant and allowing to condense by water coo li ng, wate r is decanted froll1 below and the supernatant o il is collected floating above.

PAT NO/ CC APPNO APPLICANT TITLE

126354(IN) 12G354

CSIR

PUB DATE: 20-10-73

APP DATE : 25-04-70

A PROCESS FOR OBTAINING USEFUL STEROIDS FROM A NEW PLANT SOURCE

A process for ob ta ining s te roid s which consists in extracting Commiphora species resin or v,.;ooel with a suitable nO ll -polar or s lig htly poiar solvent followed by chromatography and crystall iza tion.

PAT NO/ CC APPNO APPLICANT TITLE

127575(1N) 127575

CSIR

PUB DATE : 07-04-73

APPDATE : NA

A PROCESS FOR THE MANUFACTURE OF XANTHOTEXIN (8-METHOXYPSORALEN) FROM THE.ROOTS OF HERACLEUM CANDICANS

By extracting th e tola l extract con taining different furano coumarin e with solvent oil and elealkylatilng th e fura no coumarins to xanthotoxol with the use of phosphoric acid in glacial acetic ac id medium and methylating the xanthotoxol to xanthotoxin with dimethyl sulphate in sodium carbon ate solution.

PAT NO/ CC APPNO APPLICANT TITLE

127576(IN) 127576

CSIR

PUB DATE: 31-08-74

APP DATE: 17-07-70

A PROCESS FORTHEMANUFACTURE OF CALCIUM SENNOSIDE EXTRACT FROM SENNA PLANT MATERIAL

A process for the preparation of calc ium seenoc ide extract with at least 25 per cent sennosides (1'0 111 senn a plant material by percolating the material with a water miscible organic solvent containing th e required quantity of an edible organic acid , adding calcium chloride to th e percolate and bringing it to pH 7.0 by alkali.

PAT NO/CC - . APPNO APPLICANT

127743(1N) 127743

CSIR

PUB DATE : 27-07-74

APP DATE : 28-07-70

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TITLE

J. INTELLEe. PROP. RIGHTS,JANUAHY E)SJ()

A PROCESS FOR OBTAINING COLCHICINE FROM A NEW PLANT SO URCE

i\ process for obtaining colchicine by extracting plant material wi th polar solvent followed by dilution with water and pH adjustment and re-extraction with e thylene dichloride to obtain n lkhicin e characterised in that the plant material consists of Iphigenia stellata.

PAT NO/ CC

APP NO

APPLICANT

TITLE

128426(US) 128426

BELOIT CORP

PUB DATE: 11-11-72

APPDATE : NA

METHOD FOR PREPARlNG A PAPER PULP ROM FIBROUS NON WOODY LIGNOCELLULOSE PLANT MATERIAL

Comprising th e sequential steps of wet1ing th e plant material, th en wet depithing to produce a s lurry and th en diluting it and th en after parti al dewatering , the s lurry is impregnated with an aqueous solution of an alkalin e hydroxide and then th e same is chemically digested at a temper<1ture of 330° to 380°F and a steam pressure in th e range of about 100 to 150 psig.

PAT NO/CC

APPNO

APPLICANT

TITLE

132395(1N) PUB DATE : 16-06-73

132395 APP DATE : 05-08-71

PILLAl KS

A PROCESS FOR EXTRACTION PRESERVATION OFTHE SOUR PRINCIPLE FROM THE FRUITS OF TAMARIND U5 INDICA

A process (or th e preparation of tamarind concentrates from the fruits of Tamarindus Indica wherein th e fruit s of Tamarindus Indica are extracted with water preferably warm wa ter until a ll th e sour principle of th e fruits is recovered in th e wate r followed by filtration and cl arifica ti on of the liquid extracted by method as here in defin ed ch aracterized in that th e clarified ex tract is subjected to bleaching us ing liquid or g aseous sulphur dioxide , whereafter the bleached extract is vac uum evaporated to a semi solid state , the semi sol id thus obtain ed being th en for tified by treating with vinegar or g lacial acetic acid (2% by volume) to provid e s torage stable tamarind extract.

PAT NO/CC

APPNO

APPLICANT

TITLE

135521(IN) 0025/72

PUB DATE : 08-12-73

APP DATE : 24-04-72

CHATTERJEE IB

ISOLATION OFTWO NOVELANTIFUNGAL CUMPOUNDS FROM SEEDS OF THE PLANT CASSIA TORA LINN

A process for th e isolation of two novel antifungal co mpounds herein named as Cass iacin I and C;lssiacin " I from th e seeds of th e plant Cassia Tora Linn. which comprises treating the said ground seeds with wa ter followed by extac tion with polar or nonpolar solvents singly or cOlljointly. to obtain a so lvent extract, evaporating th e solvents uncl eI' su ction from th e solvent

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PATENT SCAN 23

extract leaving a residue and finally separating the residue by thin layer chromatography or column chromatography.

PAT NO/CC APPNO APPLICANT

TITLE

136565(1N) PUB DATE : 11-01-75

0633CAL73 APP DATE: 20-02-73 KHANNA (MISS) P

ISOLATION OF INSULIN FROM A PLANT SOURCE

A process for isolation of insulin, which comprises the extraction of insulin from tissue cultures raised from seeds or fruits collected from the field from Momordica charantia Linn (bitter gourd) with a mixture of ethanol, water and sulphuric acid, adjusting the pH of the extract to 1.5- 2.0, precipitating the insulin by adding cold ethanol and diethyl ether, adding traces of zinc to cause crystallization and purifying the crude crystals by thin layer chromatography.

PAT NO/CC APPNO

lNTCLASS

APPLICANT

TITLE

137179(IN)

0927/72

C12C011008

PRABHUKA

PUB DATE: 24-05-75

APP DATE : 21-07-72

A PLANT AND PROCESS FOR THE MANUFACTURE OF COMPRESSED BAKER'S YEAST FROM INDIAN PLANTATION CANE WASTE MOLASSES

A process for the manufacture of compressed baker's yeast from Indian plantation cane waste molasses using a molasses clarifying method which comprises adding calcium triple super­phosphate and acid sulphuric (cone.) in the proportion of 1 and 0.08 per cent respectively to a hot molasses solution of 50% sugar content (on weight of molasses) heating the solution with a steam and agitation of the solution and maintaining it at boiling temperature for 30-40 minutes, cooling the contents decanting diluting with water to 2.5 degree brix strength propagating the yeast culture and fermenting after adjusting the total sugars to 1 to 1.25 per cent, formal number 1 to 1.3. total sugars to wet yeast (75 per cent) ratio of 4:3 phosphate 125 to 150 mg/ L. pH 4.8 ·to 5.2 aEd aeration rate of 0.5 cu ft. pel' gal. of wort and at a controlled temperature of 30°C.

PAT NO/CC APPNO lNTCLASS APPLICANT TITLE

137239(IT) 115872 C07G005000 SIMES SPA

PUB DATE : 31-05-75 APP DATE : 14-08-72

METHOD FOR THE EXTRACTION OF LYSERGOL FROM CALONYCTION (CHOISy) HALLIER F. SP. NOVA

A method for the extraction of lysergol from the plant Kalabas that is, a plant of th e family of Co nvolvulaceae, section of Ipomoeae genus Calonyction (Choisy) Hallier f. nova species sa id extraction being carried out on the seeds, ground and fast stripped beforehand, with a halogen substituted aliphatic hydrocarbonaceous solvent at a temperature from 10°C to 30°C and repeating the extraction step from 3 to 5 times, t.~e so obtained extracts, combined and

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J. INTELLEC. PIW P. I ~ IGlfrS,JANUi\ I~Y I ~~(j

concentrated to one tenth of their original volum e at a temperature below 30°C and under s ub­;Itmospherical pressures, being allowed to stand a few days at OOC-4°C and su bsequ ently filtered, th e filtrate after washing with water bei ng extracted with an aqueous acidic sol ution to sepa rate the ergolic alkaloids. said extraction be ing continued until negativing th e Eh rli ch a lkaloid test, from the combined acidic extracts, sl ightly made alkaline with a base the ;ll kaloids being extracted again with a mixture of a ch lorinated aliphatic hydrocarbon and an al ipha tic alcohol the new extraction be ing continu ed until said Eh rlich test is negative again, and th e combined extracts, washed once only with water and dried over ;mhydrous sodium sulphate being evaporated to dryness at a temperature below 30°C under sub-at mospherical pressures, iorming a residue composed by the alkaid fraction of the ext-Io racted plant, where Iysergol predominates, and isola ting Iysergol fro m the residue by the s teps such as herein described.

PAT NO/CC AI)I' NO

I0IT CLASS

APP LI CANT

TITLE

137979(JN) PUB DATE: 25-10-75

0126BOM72 APP DATE: 08-12-72

A23L001026J\23L001036

HIND USTAN LEVER LTD

A Ml:.'THOD OF PREPARING A STABILIZED MUSTARD SEED FLAVOUR INGREDIENT

A Illetl lod of preparing a stabi lised mustard seed fl avour ingredient which comprises the steps of (i) crushing mustard seed in the absence of wate r (ii) at least partially defatting the crushed seed by extraction with a non-polar solvent, (iii) grind ing the extracted seed to a powder which contains both hu sk an d cotyledon, (iv) suspending the powder in 1,2- dichlorethane to separate the g round co tyledons from the ground husks, and (v) removing the ground cotyledons and dlying them to eliminate residual so lvent.

PAT NO/ CC APr 10

INTCIASS

APPLICANT

T ITLE

138525(1N) PUB DATE : 14-02-76

0149BOM73 APP DATE 28-04-73

A61K027000

BHANOTRA CrvI

PROCESS FO R MANUFACTURING PHARMACOLOG ICALLY ACTIVE PRINCIPLE FROM COMMIPHORA MUKUL FO R USE AS BLOOD LIPID LOWERING AGENT

A process (or isolating a pharmacologically active principle from oleo-gum-resin of commiphor a rnukul for use as a lipid lowering agent wherein samples of Oleo-g um-resin of go lden yellow va riety [rom the bark of the plant commiphora Mukul are mixed with water till an emu lsi~)Jl. is formed which is then passed through a mesh sieve into a container containing water to form g lobules; which are dried; extracted with ethyl alcohol, the residue is dried and then extracted wi th petro leum ether on a water batp by using the known refluxing technique; the extract thus obtained is di stilled on a water bath leaving a residu e which is the pharmacolog ically active principle.

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PAT NO/CC J\pp NO

INTeLASS APPLICANT TITLE

I'J\TENT SCAN

1:391:36(IN) PUB DATE : 08-05-76 1849CAL75 C07C173002 CS IR

APP DATE : 26-09-75

A METHOD FOR ISOLATION OF DIOSGENIN FROM PLANT MATERIALS SUCH AS WEEDS OF GENERA KALU:lTIWLMIA AND TRIBULUS PLANTS

., !: <-.J

A process for iso lation of diosge nin which consists in hydrolysing dri ed and powd ered plant male rial of weeds such as Kallstroe1'llia pubescens (G . Don) Dandy (Sy. Tribulus I?pubescens G. DOll) anc! Tribulus terrestries Linn . containing diosgenin with about 5 per cent gen tly boiling hydrochloric acid (or sulphu ric acid of the same stre ngth) and isolating diosgenin with a so lvent such as pentan e , hexan e, heptane and their mixture .

PAT NO/CC APPNO I T CLASS APPLICANT TITLE

1:39204(1N) 1418CAL73

PUB DATE : 22-05-76 APP DATE 18-06-73

C07D035010,C07D035028 CSIR COLD PROCESS FOR PROD UCTION OF BERBERI E HYDROCHLORIDE FROM BERBERIS ROOTS

A process for the prepara tion of barberin e hydroch loride which consists in percolating powdered berbe ri s roots with dilute acetic acid a t a temperature of 2SoC to 35 ' ( fO I' 24 hours followed by prec ipitating berberin e hydrochloride with hydrochloric acid.

PAT NO/CC APPNO I T CLASS PRDATA APPLICANT TITLE

139973(GB) PUB DATE : 28-08-76 1667CAL73 APP DATE: 17-07-73 A23 FOOl 008,C0760 17000,A23F003002 ,C 11 B009002 720719G B-023795 72 BROOKE BOND LIEBIG LTD IMPROVEMENTS IN OR RELATING TO EXTRACTION OF FLAVOURS AND FRAGRANCES FROM PLANT MATERIAL

A process for extracting flavours and fragrances from plant material which comprises treating the plant material with a non-polar fluorinated hydroca rbon solvent containing two or more carbon atoms and s imul taneously or sequentia lly with a polar so lve nt or, optionally with a non-polar solve nt containing two or more carbon at~ms alo ne wh e n th e plant material is substantially unroasted or unfermented material, and, where appropriate, se parating th e resulting layers and re moving the so lvent or solvents by evaporation from th e layer or laye rs containing th e desired fl avours and fragrances di ssolved therein :

PAT NO/CC APPNO

140367(1N) 0750CAL74

PUB DATE: 23-10-76 APP DATE : 04-04-74

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INTCLASS

APPLICANT

TITLE

J. INTELLEC. PROP. RIGHTS,JANUAHY 1996

C07D021000

CCRIMH

PROCESS FOR THE ISOLATION OF 2,3aa DIMETHYL CHROMEN 1-METHOXY 9-HYDROXY 10yy DIMETHYL ALLYL PTEROCARPAN KNOWN AS GANGETIN FROM THE ROOTS OF DESMODIUM GANGETICUM (FAMILY: LEGUMINOSAE)

A pr')cess for the isolation of 2,3 a a dimethyl chromen 1-methoxy·9-hydroxy 10 yy-dimeth allyl pterocarpan, known, as gangetin, from the roots of Desmodium gangeticum (Famil Leguminosae) which comprises shade drying and powdering of the sa id roots, soaking tr. said powder in benzene in an aspirator bottle at room temperature [or 80 hours, decanting th said benzene extract and evaporating the same in vacuo to remove most of the benzen, subjecting the residue so obtained to chromatographic purification over silica gel, eluting th 2,3 a a-dimethyl chromen 1-methoxy 9-hydroxy 10 y y-dimethyl allyl pterocarpan, known d

gangetin, with hexane and hexane-benzene solvent mixture (1 : 1) , combining the said eluate~ concentrating to a white mass and purifying the said mass by crystallisation with a solver: mixture consisting of hexane-ether (1 : 1) to yield the said gangetin in pure form .

PAT NO/CC APPNO INTCLASS

APPLICANT TITLE

140419(IN) PUB DATE : 06-11-76

1331CAL74 APP DATE : 17-06-74

C07G017000

CSIR PROCESS FOR THE PRODUCTION OF NEW DITERPENE HAVING HYPOTENSIVE AND SPASMOLYTIC PROPERTIES FROM THE ROOTS OF PLANT COLEUS BARBATU

A process for the production of a new diterpene having M.P. 220-222°C, optical rotation (1.( per cent cone in chloroform) (a) D= - 16°, molecular formula C22 H~4 0 7 and possessing hypotensive and spasmolytic properties, from the root of the plant Coleus barbatus, which consists in extracting the root with an . organic solvent, subjecting th e extract to chroma­tographic fractionation on silica gel using successively hexanebenzene, benzene and benzene­ethylacetate solvent system, and crystallizing the substance obtained by chromatographic fractionation.

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

140691(IN) PUB DATE: 11-12-76 0188MAS73 APP DATE 14-12-73

C12G003002

NARAYANANK PROCESS FOR PREPARING FLAVOURED ALCOHOLIC BEVERAGE FROM TODDY YIELDING PLANTS

Process for preparing a flavoured alcoholic beverage comprising: collecting uncontaminated sweet toddy from toddy yielding plants such as cocos nuci/era in a container containing a preservative consisting of a mixture of calcium carbonate, sodium carbonate and an alkali metal

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PATENT SCAN

bisulphite in the ration of 25: 2: 1 parts by weight, acidifying the said mixture containing the sweet toddy and the preservative by conventional method to a pH upto 5.0 followed by sterilization; cooling and inoculating the obtained sterilized mixture with a strain of yeast sacchromyces cerevisiae to obtain the flavoured alcoholic beverage.

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

141222(IN) 0186MAS76

A23N001000

NARAYANAN K

PUB DATE: 05-02-77

APP DATE 17-09-76

AN APPARATUS FOR TAPPING TODDY FROM TODDY YIELDING PLANTS

An apparatus for tapping toddy from toddy yielding plant consisting ,of an adapter comprising a short bent arm,one end of which being split unevenly, the other end being vertical to short ann and tapering towards its lower end,lower end terminating into a screw cap, the said screw cap being screwed on to a container, the said lower end also having a mesh sieve attached thereto the said adapter being hollow from one end to the other.

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

141240(IN) PUB DATE : 05-02-77

1481CAL75 APP DATE : 29-07-75

C07G003000

CSIR

A PROCESS FOR THE PRODUCTION OF SPER!vlICIDAL SAPONINS FROM PLANTS

A process for the production in a stable, solid non hygroscopic form of such saponins which show spel'lnicidal activity in human semen and incorporate in their l1lolenrla hederagenin, bassic acid or oleanolic acid aglycerine from such saponin bearing plants e.g. Sapindus mukoro siiR/crtJl SaPindus tri/oliatus Linn. Madhuca buryraceae Trigonella, Fu J/cu mgraacu 111 , Blighia sapida, Ardisia Nerii/olia wahl Caltha Palustris Linn. Schleffiera Capitata Ham/us pittosporum Nighrense WandA. Samena Saman by extracting the dry plant material with a Cl to (" alkyl alcohol containing more than five per cent water, volume/volume room temperature concen­tration of the alcoholic extract and maceration of the residual mass with a mixture of C 1 to C4 alkyl alcohol and a C 1 to C4 alkyl ether followed by decantation to separate the aqueous syrup mass and removal of the mixture of C1 to C4 alkyl alcohol and C1 to Cs alkyl ether from the decanted liquid to give the saponins or the mixture of saponins which are also termed as total saponins.

PAT NO/CC APPNO

INTCLASS

APPLICANT

141623(IN) PUB DATE: 26-03-77

0305BOM74 APP DATE 26-08-74

C07B007000,A23K001000

HINDUSTAl"l LEVER LTD

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].INTELLEC. PROP. RIGHTS,JANUARY 1996

TITLE PROCESS FOR DETOXIFYING OF NUTRIENT PlANT MATERIAL CONTAINING SAPONINS

A method of detoxifying any nutrient plant material, such as alfalfa and defatted mowrah meal, which naturally contains one or more toxic saponins the presence of which hinders the use of such nutrient plant material in animal feeds, in which method the nutrient plant material is treated with a hydrolysing agent to bring about hydrolysis of saponins to sapogenins.

PAT NO/CC

APPNO

INTCLASS

APPLICANT

TITLE

141663(1N) PUB DATE: 02-04-77

0219CAL74 APP DATE : 01-02-74

C07G003000

CSIR

A PROCESS FOR THE EXTRACTION OF TANNIN FROM COCONUT HUSK VIZ EPICARP OF THE FRUITS OF COCOS NUCIFERAAND FURTHER PROCESSING-THE SAME FOR USE IN LEATHER INDUSTRY

A process for the extraction of tanin from coconut husk (the exocarp of cocosnucifera) for use in leather tanning by (i) extracting coconut husk with alkali solution and (ij) evaporating the extract under vacuum until the reduced volume contains about 10% solid characterized in that the alkali extract obtained in step (ij) is further refluxed with a reducing agent and the reduced extract is evaporated to dryness in a vacuum drier or spray drier.

PAT NO/CC

APPNO INTCLASS

APPLICANT TITLE

143322(IN) PUB DATE : 05-11-77

0009DEL77 APP DATE : 12-01-77

C07D007020

CSIR A PROCESS FOR THE PRODUCTION OF A NEW COUMARIN HAVING SPASMOLITIC PROPERTIES FROM AERIAL PARTS OFTHE PlANT ClAUSENA PENTAPHYLlA (ROXB) DC

A process for the production of a new coumarin possessing spasmolytic properties comprising extracting the aerial parts of the powdered plant, Clausena pentaphylla (Roxb) DC wi th an organic solvent, concentrating the extract under reduced pressure followed by chromatogra­phy of the concentrated extract using a suitable adsorbent and eluent and C1ystallizing the pure substance so obtained by a suitable organic solvent.

PAT No/CC APPNO

INTClASS

APPLICANT

143681 (ME) PUB DATE: 14-01-78 2275CAL74 APP DATE : 11-09-74

D21C005000

ENRIOVE ZEPEDA CASTILLO OF CALLJUAN BERNARDINO

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TITLE

PATENT SCAN

PROCESS FOR THE OBTENTION OF FERMENTABLE POWDERED SYRUP AND ALPHA CELLULOSE FROM XEROPHYfE PlANTS

29

A process for producing a fermentable powdered syrup and an alpha-cellulose preparation from succulent xerophyte plant material, which comprises: (a) chopping washed leaf and core material of a succulent xerophyte plant to form pieces of a size suitable for liquid extraction; (b) treating the pieces with an aqueous extraction liquid at a temperature from 85° to 92°C to extract soluble plant materials into the liquid, and separating the liquid extract from a solids-containing residue; (c) hydrolysing the solids-containing residue from step (b) by treatment with water at a temperature in the range 100°- 120°C and under sufficient pressure to maintain water in the liquid state, expressing a hydrolysis liquor from a solids containing hydrolysis residue, and mixing the hydrolysis liquor with the liquid extract from step (b); (d) concentrating the mixed liquid extract and hydrolysis liquor to form a syrup having a Brix degree of about 80, and spray-drying the sYfl:1P to produce a fermentable powdered syrup; and (e) recovering in a manner known per se an alpha-cellulose preparation from the solids-con­taining hydrolysis residue.

PAT NO/CC APPNO INTCLASS APPLICANT TITLE

144370(IN) 0133DEL77 C07C049074 DIXITVP

PUB DATE : 29-04-78 APP DATE : 13-08-77

ISOLATION OF MALE ANTIFERTILITY DRUG EMBELINE FROM A PlANT SOURCE

A process of isolation of embeline (2-:-rdihydroxy 3, undecyl p-benzoquinone) which comprises the extraction from berries collected from the field from Embelia ribes (VIDANGA in Sanskrit) with hot ethanol and running the extract in silica gel G column in n-butanol, acetic acid and water which are in the ratio of (4:1:5) and crystallizing with cold ethanol and then purifying the crude crystals by thin layer chromatography.

PAT NO/CC APPNO INTCLASS APPLICANT TITLE

144493(IN) PUB DATE: 13-O:-r78 1969CAL76 APP DATE : 29-10-76 C12B001008,C12D013010,C07GOO7028,D06M015002 JUTE TECHN RES lAB A METHOD OF SOFTENING AND UPGRADING BARKY JUTE/BARKY ROOT CUTIINGS

A method of softening and upgrading barky jute/barky root cuttings in which barky jute/root cuttings are inoculated with the mat of fungal culture (Penicillium corylophilum Dierckx) grown in potato-dextrose broth at a temperature of 27 to 36°C preferably at 30-32°C and piled at room temperature for 2-4 days under cover when the enzyme (pectinases) secreted by the fu~gal·culture decomposes the barky portions of jute/root cuttings and then the softened materials are processed in normal jute machinery.

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:w

PAT NO/CC APPNO INTCLASS APPIJCANT

TITLE

PAT NO/CC APPNO INTCLASS APPLICANT TITLE

.J,INTELLEC. PIWP. I~IGI-rrS.JANUAHY )!:)!:)6

144951(IN) PUB DATE: 29-07-78 0526CAL75 APP DATE 18-03-75 C 12BOO1000,C] 2K003000

IJIRA NON-PATHOGEN IC MIXED BIOLOGICAL CULTURE FOI~ SOFTENING ROOT CUTflNGS

144991(JP) PUB DATE : 05-08-78 1483CAL77 APP DATE : 06-10-77 A23B009000,A23L003000,A65B055000 KUREHA KAGAKU KAGYO KK METHOD FOR PRESERVING EDIBLE ROOTS OF DEVIL'S TONG UE

A method for preserving powdered roots of devil's tongue, which comprises packing the powder in vacuum or in a purging gas with a packaging mate rial which has a barri er property expressed by an oxygen permeability of not more than 100 cc / mL. 24 hr. atm . 30°C dry and a moisture permeability of not more than 5 g/ mL 24 hr. 40°C 90% RH .

PAT NO/ CC APP NO INTCLASS APPLICANT TITLE

PAT NO/ CC APPNU INTCLASS APPLICANT T ITLE

145013(IN) 1 ~)82CAL7b

C 12D01301O

lJIRA

PUB DATE : 12-08-78 APP DATE : 01-11-76

PROCESS FORTHE PRODUCTION OF INEDIl3LE AND NON­PATHOGENIC CELLULASE AND METHOD OF SO FTENING IWUT-CUTflNG OF .JUTE USING SAID CELLULASE

145858(1N) OW4 DEL77 C07C049066 CCRlMH

PUB DATE: 06-01-79 APP DATE : 11-05-77

A PROCESS FOR THE ISOLATION OF 2-HYDROXY 3- (3-METHYL-2- BUTENYL)-l,4-NAPHTHAQUINONE, KNOWN AS LAPACHOL FROM THE ROOTS OF STEREOSPERMUM TETRAONUM DC (FAMILY: BIGNONIACEAE)

A process for th e isolation of lapachol, 2-hydroxy-3-(3- methyl-2-butenyl) -l. , 4-naphthaquinone from lh e root (If :>fcyevspermurn tetraonum DC (family: Bignoniaceae) which comprises shade drying and coarse powdering of the said root, extracting the said powder with hot hexane in a soxhlct apparatus, del',lI1ting the said hexane extract and distilling the same to remove most of th e hexan e. the last traces in vacuo, subjecting the residue so obtained to chromatographic purification over silica gel. eluting lapachol with benzene- hexane (1: 1) mixture, combining the said cluates. conn.: ntrating to yield yellow needles, purifying by recrystallisation from ether.

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PAT NO/CC APPNO

INT CLASS

APPLICANT

TIT LE

PATENT SCAN

145886(IN) PUB DATE: 13-01-79

0327BOM77 APP DATE : 18-11-77

D21H001000

ICAR

A PROCESS FOR THE MANUFACTURE OF PARTICLE BOARDS FROM COTION PLANT STALKS

A process for the manufacture of particle boards using cotton plant stalks which comprises the steps of spraying the particulate material, obtained from cotton plant stalks with aqueous urea-formaldehyde resin solution binder and a catalyst containing 4-5% NH4 Cl by weight of th e resin, followed by drying the coated particles in the moisture range 25-30%. cold pressing to form a mat and finally pressing under pressure of 20-25 kg/ cml and at a temperature between 110 and 170°C.

PAT NO/CC APPNO

INT CLASS

APPLICANT

TIT LE

145926(1N) 0234BOM76

PUB DATE : 20-0 J-79

APP DATE 15-07-76

C07D007000,A61 K027014

HOECHSTAG

PROCESS FOR THE ISOLATION OF PHARMACOLOGICALLY EFFECTIVE SUBSTANCE FROM PLANTS BELONGING TO LABIATAE FAMILY

A process for isolating a pharmacologically effective substance from plant belong ing to th e L,lbiatae family which comprises extracting the dried and ground plant parts with an organic solvent. evaporating in vacuo the extract to obtain a residue, partitioning th e residu e between tw o immiscible solvents, evaporating in vacuo the solvent containing th e dissolved residue to dryness, subjecting the resulting residue to colin chromatographic on silica gel or alumina. evaporating in vacuo the chromatographic fraction containing the pharmacologically effective substance to g ive a residue and recrystallizing the residue from organic solvents to obtain pure product.

PAT NO/CC APPNO

INT CLASS

APPLICANT

TITLE

146283(m 0321CAL77

PUB DATE : 14-04-79

APP DATE: 04-03-77

D21COOI006,D21COO3018

CONSORZIO FABOCART SPA

PROCESS FOR THE PREPARATION OF PULP FOR PAPER MANUFACTURE FROM DICOTYLED ONEOUS PLANTS

A process for the preparation of pulp for paper from dicotyled on eous plants comprising the steps of : stirring. in a pulper, the dicotyled oneous plants in an alkaline solution in th e presence of a conventional surfactant and at least one stain inhibiting agent selected from the group consisting of peroxides and sodium hypochlorite, which agent prevents staining of th e plant fibres in alkaline media by blocking the chromophoric groups of the dicotyled (m eous plants, fo r 30 to 60 minutes, at a temperature from 50 to 9O"'C preferably 75° to 85°C in order to obtain

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J. INTELLEC. PROP. RIGHTS,JANUARY 1996

a stock containing both a woody core fraction and a bark fraction containing bark fibres; dividing by known methods, said stock into a woody core fraction and a bark fraction; and then subsequently cooking and bleeching said bark fraction under atmospheric pressure in an alkaline solution comprising 2-6% hydrogen peroxide, 5-20% alkali such as sodium hydroxide 0.1-0.5% conventional wetting agent (based on the weight of the dry matter) at 70-95°C for 30-120 minutes, and firially thoroughly washing and acidifying the prepared pulp to pH 5 to 6 with an aqueous solution of a member selected from the group consisting of sulphur dioxide and oxalic acid.

PAT NO/CC APPNO

INTClASS

APPLICANT

TITLE

PAT NO/CC APPNO

INTClASS

APPLICANT

TITLE

147030(IN) PUB DATE : 27-10-79

0245BOM76 APP DATE 21-07-76

A61KOO7000,C.07D007000

HOECHSTAG

PROCESS EOR ISOlATION OF C;OLEFORSIN FROM THE PLANT SOLEVS FORSKOHLII

148708(1N) PUB DATE: 16-05-81 0485CAL78 APP DATE· : 28-06-78

A61]0OO300

CSIR A PROCESS FOR MAKING PAlATABLE PREPARATIONS OF PLANTAGO OVATASEED HUSK

Process for making of palatable preparation of Plantago ovata seed husk comprising treating the purified husk with an aqueous solution of alcohol, or sucrose or gum accacia, drying the same to obtain crispy solid mass and granulating the solid mass in admixture with desired edible flavouring and effervascent agents and the granules are further coated with 2.0% of shellac solution in alcohol in a pan followed by a coating of gelatine, sugar, starch and other desired colouring and flavouring agents.

PAT NO/CC APPNO

INTClASS APPLICANT

TITLE

148938(1N) 0168BOM78

PUB DATE : 25-07-81

APP DATE : 07-06-78 A61K027000,C07C039000,C07C065000,C07C10~~OOO,C07D007000

HOECHSTAG

A PROCESS FOR THE PREPARATION OF AN ACTIVE SUBSTANCE HAVING MEDICINAL PROPERTIES FROM PLANTS BELONGING TO THE MElASTOMATACEAE FAMILY

A process for the preparation of an active substance having medicinal properties from plants belonging to the Melastomataceae family which comprises extracting plants belonging to the Melastomataceae family with a solvent, separating the extract, concentrating and purifying the extract in a known manner.

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PAT NO/CC APPNO INT CLASS APPLICANT TITLE

PATENT SCAN

148968(IN) PUB DATE : 01-08-81 0257BOM79 APP DATE 13-08-79 A61K027000,C07D057000 HOECHSTAG A PROCESS FOR THE PREPARATION OF A NOVEL PHARMACOLOGICALLY ACTIVE ALKALOID, NAMELY N­METHYL-COCCULINIUM HYDROXIDE FROM PLANTS BELONGING TO THE MANISPERMACEAE FAMILY

33

A process for th e preparation of a novel, pharmacologically active alkaloid, namely, N-methyl­coccuIinium hydroxide from plants belonging to the Manispermaceae family, which comprises extracting plants belonging to the Manispermaceae family, which comprises extracting plants belonging to the Manispermaceae family with a solvent, separating, concentrating and drying and purifying the extract to ob!ain the said N-methyI-cocculinium hydroxide.

PAT NO/CC APPNO INT CLASS APPLICANT TITLE

150241(1N) PUB DATE : 21-08-82 0472CAL78 APP DATE : 24-06-78 C07G005000 CSIR PROCESS FOR EXTRACTION OFTHETOTALALKALOIDS FROM ROOT OF ATHERANTHUS ROSEUS G DON (VINCA ROSEALINN)

A proce~s for the production of the total alkaloids of the roots of Catharanthus roseus G. Don. (Vinca rosea Linn) plants which comprises extraction ofthe powder.ed roots with a polar solvent such as rectified spirit and separation of the basic fraction from the' crude extract by treatment with a mineral acid and then basifying the aqueous acid solution with an alkali characterised in that the gum-like total alkaloids thus obtained is treated with hexane under vacuum to obtain it in a powder form.

PAT NO/CC APPNO INTCLASS APPLICANT TITLE

150331(IN) PUB DATE: 11-09-82 o 164CAL80 APP. DATE : 12-02-80 C08B001000 SEN SSK A METHOD FOR THE EXTRACTION OF ALPHA CELLULOSE OF HIGH PURI1Y FROM PLANT LEAVES OF HIGH CELLULOSE CONTENT

A method for the extraction of alpha-cellulose of high purity from plant leaves of high cellulose content, comprising the steps of: (i) extracting fibres from the said plant leaves by methods known per se (such as herein described), (ii) subjecting the fibres so extracted to degumming treatment by way of the methods such as herein (iii) treating the degummed fibr~s obtained from the said step (ii) by any of the methods such as herein described, for complete delignifi­cation of the fibres, and (iv) bleaching the delignified fibres obtaihed from the said step (iii) by

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lINTELLEe. PROP. RIGHTS,JANUAHY !!)!)(i

methods known per se (such as herein described), demineralized water being used throughout said steps (i) to (iv)- whereby alpha-cellulose of high purity is obtained.

PAT NO/CC APPNO INTCLASS APPLICANT TITLE

lS033S(IN) 077lDEL78 A61K027000 CSIR

PUB DATE : 11-09-82 APP DATE : 18-10-78

PROCESS FOR PRODUCTION OF SPERMICIDAL SAPONINS FROM FRUITS OF SAPINDUS SPECIES COMMONLOY KNOWN AS SOAP NUT

A process for the production of spermicidal saponins from the fruits of Sapindus species commonly known as soap nuts by extraction of the powdered plant material with a water immiscible lower alkyl alcohol and washing the extract with cold water saturated with lower alkyl alcohol to remove free sugars followed by complete removal of the solvent under vacuo.

PAT NO/CC APPNO INTCLASS APPLICANT TITLE

lS2668(CA) PUB DATE : 10-03-84 0042CALBO APP DATE : 14-01-80 B01]001000,B29J005000 INTERCANE SYSTEMS INC APPARATUS FOR FORMING BOARDS FROM PLANT fIBERS

Apparatus for forming plant fibers into boards comprising means for delivering plant fibers in random orientation, said fibers bearing a known binder substance; means for forming slugs of said plant tibers wherein the fibers are pushed by a plunger and are oriented toward a substantially parallel relationship with each other and with the long dimension of the board; and means for thereafter compressing the slugs in a chamber of a press wherein said binder substance is solidified as hereinbefore described to form a board of bonded fibers, charac­terized in that said plunger is arranged to push the first slug of fibers against the reaction of a wall which is stationary in the direction of pushing and then to push a plurality of additional slugs against the reaction of the preceding slug, until a group of slugs including said first slug have been pushed together, said press comprising a pair of platens, at least one of which platens is movable towards the other to compress the group of slugs therebetween.

PAT NO/CC APPNO INTCLASS APPLICANT TITLE

lS2988(1N) PUB DATE: 19-05-84 1099CALBO APP DATE : 29-09-80 D01C001002 UIRA A COMPOSITION FOR ADDITION TO JUTE BATCHING OIL/WATER EMULSION AND METHOD FOR UPGRADING AND OR SOFTENING OF ROOT ENDS OF LOW GRADE JUTE AN D ALLIED FIBERS

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PATENT SCAN 35

A composition for addition to jute batching oil/water emulsion OBO/ Water emulsion) for upgrading and / or rootend softening of low grade jute and allied fibres comprising 0) a swelling agent being a compound selected from the group carbamide, sulphamide, ammonium thiocy­anate and sodium carbonate, (ij) a wetting/softening agent such as an anionic surfactant, e.g. sodium salt of dodecyl benzene and (iii) trace elements such as compounds of boron, manga­nese or copper.

PAT NO/CC APPNO

INT CLASS

APPLICANT

TITLE

153415(IN) 0869DEL79

A61K027000

CSIR

PUB DATE : 14-07-84

APP DATE : 05-12-79

PROCESS FOR THE ISOLATION FROM N£EM OIL OF ACTNE PRINCIPLES EVINCING OVIPOSITION DETERRENT ACTIVITYININSECTS

Process for the isolation from neem oil of active principles evincing oviposition deterrent activity in insects which comprises extracting neem seed oil with an organic solvent of the kind described herein, concentrating the extract, subjecting the concentrated extract to column chromatography over silica gel in order to fractionate it into a number of portions, re -chroma­tographing the first of said portions into at least twenty fractions . collecting the middle fractions, separating by filtration the solid content of said collected fraction acetylating said filtered solid, removing the acetylated product in any known manner and recovering the non-acetylated residue as the desired active principle.

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

153609(FR) PUB DATE: 28-07-84

1285CALSO APP DATE 18-11-80

C07D005022

BERTIN &CIE

PROCESS FOR THE PRODUCTION OF FURFURAL FROM PLANTS AND APPARATUS FOR CARRYING OUT THE PROCESS

A process for the production of furfural from plants containing pentosans, characterized in that: (a) In a first reactor, hydrolyzing pentosans present in said vegetable matter in the presence of a concentrated strong acid at or near atmospheri~ pressure at temperature of 20° to 70°C, thereby obtaining a solution of pentoses; and (b) In a second reactor, dehydrating said solution of pentoses by the section of steam applied at a pressure of 1 to 2 bars absolute and a temperature up to 110°C in a concentrated acid medium, thereby yielding furfural.

PAT NO/CC APPNO

INTCLASS

APPLICANT

154331(IN) PUB DATE: 20-10-84

0378DELSO APP DATE : 21-05-80

C07D057000

CSIR

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]. INTELLEC. PROP. RIGHTS, JANUARY 1996

TITLE A PROCESS FOR THE SELECTIVE ISOLATION OF VINBLASTINE SULPHATE FROM VINCA ROSEA PLANTS

An improved process for the selective isolation of pure vinblastine sulphate from vinca Rosea 1. plan t comprising treating the dried plant with an acid or base, extracting the product mixture with a water immisible organic solvent treating, the organic solvent extract formed with an aqueous organic acid solution, subjecting the aqueous acid phase thereof to organic solvent extraction and separating the alkaloids from the organic solvent extract formed, characterised in that the said organic solvent extract is treated with aqueous organic acid solutiol1,in multiple steps to obtain a plurality of aqueous fractions thereof each at a pH of level not more than 3.0 to 5.5 and treating the each of said fractions obtained with a water immisible organic solvent to obtain crude vinblastine further treating the crude product with ethanolic sulphuric acid to form vinblastine sulphate and purifying the final product by crystallisation.

PAT NO/CC

APPNO

INTCLASS

APPLICANT

T[TLE

155589(IN) PUB DATE : 16-02-85

0123DEL81 APP DATE : 06-03-81

C07D043020

CSIR

AN IMPROVED PROCESS FOR THE PRODUCTION OF ERGOTAMINE FROM ERGOT

An improved process for the production of ergotamine from ergot comprising extracting powdered fresh ergot with a solvent admixture of ethyl acetate and aq . ammonia to recover total alkaloids and oil, treating the extract containing total alkaloids and oil with aq. tartaric ,acid to separate the oil an d obtain total alkaloids in tartaric acid layer, basifying and extra,ction thereof with ethyl acetate, concentrating the extract in vacuo and separating crgotamine from the alkaloid concentrate by chromatography.

PAT NO/CC

APPNO

[NT CLASS

APPLICANT

TITLE

156246(FR) PUB DATE : 08-06-85

0766CAL82 APP DATE 30-06-82

B01D011000

SOCIETE ANONYME DBA

PROCE$S FOR EXTRACTING CONCENTRATING AND PURIFYING NATURAL AROMAS OF PLANT ORIGIN

A process for extracting, concentrating and purifying natural aromas of plant origin such as fruits, vegetables seeds or aromatic plants, comprising a step for extracting the aroma by means of an appropriate solvent, characterized so that the solvent contained in the extracted soluton so obtained is subjected to a partial separation by distillation of the solvent contained in the said extract, this distrillation being discontinued when the concentration of the aroma in solvent extract becomes sich that the boiling temperature of the solution tends to exceed that of the pure solvent; the residual solution being then subjected to stripping with an inert gas, so as to eliminate the rest of the' solvent and recover by methods known per.se the natural aroma in the substantially pure state;

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PAT NO/CC APPNO

INT ClASS

APPLICANT

TITLE

PATENT SCAN

156603(US) PUB DATE: 14-09-85 0879CAL82 APP DATE: 28-07-82

A24B015004

RJ REYNOLDS TOBACCO CO IMPROVED SMOKING TOBACCO PRODUCT AND PROCESS FOR IMPROVING THE FlAVOUR OR AROMA OF SUCH PRODUCT

37

A smoking tobacco product having added there from 0.000001 to 0.0005 per cent by weight based on the weight of tabacco contained in said product of a compound selected from the group consisting of 2-methylthio-3-methylpyrazine and 2- methylthic-5-methylpyrazine, or mixture thereof.

PAT NO/CC APPNO INTCLASS

PRDATA

APPLICANT TITLE

158430(AU) PUB DATE: 15-11-86

0555DEL82 APP DATE : 20-07-82

C131001000

810724 AUSTRALIAN CASSAVA PRODUCTS PlY LTD METHOD FOR THE RECOVERY OF STARCH FROM STARCH BEARING ROOTS

A method of recovering starch from starch-bearing roots comprising the steps of: (a) pulver­ising the whole unskinned roots to provide a pulp composed of solid fibrous material and the natural starch- containing juices of said roots; (b) subjecting said pulp to pressing to express the juice content thereof and separate the fibrous material; (c) removing said separated fibrous material; (d) subjecting the expressed starch~ontaining juice to conventional starcl? extraction in order to separate starch therefrom; and (e) returning at least a part of the resulting starch free juice to said roots during pulverisation thereof; said steps (a) to (e) being performed in the absence of liquid other than said naturally present root juices.

PAT NO/CC APPNO

INTClASS APPLICANT

TITLE

158471(IN) PUB DATE: 22-11-86

0563DEL82 APP DATE : 24-07-82

C07G017000 CSIR

PROCESS FOR THE PREPARATION OF DIOSGENIN HORSE RADDISH PEROXIDASE CONJUGATES FOR USE IN THE DETERMINATION OF DIOSGENIN IN PLANT MATERIAL

A process for the preparation of diosgenin horse raddish peroxidase conjugate for use in the determination of diosgenin in a plant material comprising the steps (a) preparation of diosgenin hemisuccinate or like dicarboxylic acid derivatives by reacting the dicarboxylic acid anhydride with diosgenin in the presence of an organic liquid base, (b) treating the dicarboxylic acid derivative formed with horse raddish peroxidase to obtain the conjugate thereof.

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PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

J. INTELLEC. PROP. RIGHTS, JANUARY ]996

158940(IN) PUB DATE: 21-02-87

0836DEL82 APP DATE: 10-11-82

C13K009000

CSIR

A PROCESS FOR THE PREPARATION OF PURE D-GALACTOSE FROM GREEN AEGLE MARMELOS FRUIT GUM

A process for the preparation of pure D-galactose from green Aegle Mannelos fruit gum comprising subjecting the green fruit gum to a two step hydrolysis process first with a mild acid in a concentration of 0.00S-0.7SN to obtain D-galactan and further with a strong acid in a concentration of 3-8% C'N /W) and separating the pure D-galactose formed by methods known perse.

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

158975(IN) OS64DEL82

PUB DATE : 28-02-87

APP DATE 28-07-82

A61K023000,C07G017000

CSIR

PROCESS FOR THE PREPARATION OF DIOSGENIN ANT I SERA FOR USE IN THE DETERMINATION OF DIOSGENIN IN A PLANT MATERIAL

Process for the preparation of diosgenin anti-sera for use in the determination of diosgenin in a plant material comprising the steps (a) preparation of diosgenin hem i succinate or like clicarboxylic acid derivative by reacting a dicarboxylic acid anhydride with diosgenin in the presence of an organic liquid base, (b) treating by known methods the diosgenin dicarboxylic acid derivative formed with bovine serum albumin to obtain a conjugate thereof. (c) injecting th e conjugate phosphate buffer aline solution to the rabbits to obtain a serum by cardiac puncture as a mixture of bovine albumin anti-sera and diosgenin anti-sera, (d) incubating the serum obtained to decomplementation, (e) treating purified decompleme nted sera to separate pure diosgenin sera, (f) passing purified decomplemented sera dissolved in a phosphate buffer saline through a bovine serum albumin and (g) eluting the absorbed bovine serum albumin antisera.

PAT NO/CC APPNO

INT CLASS

APPLICANT

TITLE

159014(US) 014SDEL83

A01F02S000

PUB DATE: 07-03-87

APP DATE : 08-03-83

FIRESTONE TIRE AND RUBBER CO

A PROCESS OF PRESERVING A GUAYULE PLANT MATERIAL

A process of preserving a guayule plant material capable of being stored for a period which, in any order of steps, comprising: (a) forming an aqueous slurry of comminuted guayule plant material with water; (b) adding at least one inhibitor of odor to the slurry which makes the pH of the system greater than 8.S or less than 5.0.

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PAT NO/CC APPNO INTCLASS APPLICANT TITLE

PATENT SCAN

159281(1N) PUB DATE: 25-04-87 0009DEL83 APP DATE : 07-01-83 C07C063000 CSIR

39

A PROCESS FOR THE PREPATION OF TRIM ETHYL ETHER OF GALLIC ACID FROM TERMINALLIA CHEBULA FRUITS

A process for the preparation of trimethyl ether.of gallic acid from Terminallia chebula fruits comprising subjecting the fruit cover of Terminallia chebula to hydrolysis by known methods and extracting the hydrolysate with organic solvent and methylating by known-methods the extract so obtained to the trimethyl ether.

PAT NO/CC APPNO INTCLASS PRDATA APPLICANT TITLE

159319(NL) PUB DATE: 02-05-87 0256DEL83 APP DATE 19-04-83 C07C043000 820419 GB-08211294 ROECAR HOLD (NGSINETHERLANDS ANTILLES) NV A METHOD FOR THE EXTRACTION OF A GLYCOSIDE FROM PLANTS OF FAMILY HYPOXIDACEAE

A process for the extraction of a glycoside useful for the prevention or treatment of cancerous conditions which comprises subjecting finely divided portions of a plant of the family Hypoxi­daceae to an extraction process, characterised in that said extraction is effected with an alcohol or an aqueous methanol or ethanol containing more than 60% of alcohol at room temperature and for one hour.

PAT NO/CC APPNO INTCLASS APPLICANT TITLE

159361(IN) PUB DATE : 09-05-87 0039DEL82 APP DATE : 16-01-82 C07G017000 CSIR PROCESS FOR THE EXTRACTION OF ACTIVE COMPOUND FROM PLANT FERULA jAESCHMENA USEFUL AS ABORTIFACIENT

A process for the extraction of active compound having the molecular formula C19H2404, melting point 68- 70°C and UV maxima at 257 nm useful as an abortifacient compound from the plant Ferula jaeschkena com- prising extracting the powdered plant material with polar and/or non-polar orgFlnic solvent, removing the solvent, further extracting the residue with a non-polar solvent and separating the active compound from the extract by fractional chroma­tography using a non-polar or a mixture of non-polar and polar solvents.

PAT NO/CC APPNO

159471(US) PUB DATE: 23-05-87 0357DEL83 APP DATE: 30-05-83

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40

INTCLASS

APPLICANT

TITLE

J. INTELLEC. PROP. RIGHTS, JANUARY 1996

AOIF025000

FIRESTONE TIRE AND RUBBER CO

METHOD OF PRESERVING GUAYULE AND GUAYULE LIKE PLANT MATERIAL

A method of preserving guayule and guayule-like plant material prior to processing which comprises mixing the material comminuted form with at least one essentially water-free organic liquid to form a slurry in which the material is protected from contact with oxygen and storing said slurry for at least about 24 hours.

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

160615(IN) PUB DATE: 18-07-87

0075BOM85 APP DATE: 25-03-85 A61K027014

SHRI AMRITESW AR PHARMA RES FOUNDATION

AN IMPROVED AND MODERN PROCESS FOR PREPARING THERAPEUTICALLY ACTIVE AND CLINICALLY EFFICACIO US AYURVEDIC MEDICINAL PLANT BASED AYURVEDIC MEDICINAL LIQUEURS

An improved and modern process of preparing therapeutically active and clinically efficacious ayurvedic medicinal plants- based ayurvedic medicinal liqueurs (Ayurvediya Aushadhi Madya), which consists of the steps: (a) beating and pulverising of individual ayurvedic medicinal plant constituent;(b) preparing aqueous extract of above by soaking the plant constituent in cold water in the ratio 1 : 8, for 24 hours;(c) preparing concentrated aqueous extract of above by steam distillation at 100°C., and filtering the same by modern filteration equipment;(d) preparing the self generated alcoholic extract from above by curing the same with Ayurvedic. fermenting agent viz., Moha.fIower extract, for 14 days; (e) preparing the concentrated selfgene rated alcoholic extract of above by vaccum distillation of the same at 80°C; (f) preparing the perfectly blended and therapeutically enriched (anupanita) ayurvedic medicinal liqueur from above by soaking the same with equivalent quantity of alcohol prepared from 'Ikshu Rasa' (sugar cane juice) for 14 days, and further enriching the same with Ayurvedic appetizing medicinal plant constituents like Cardamum. Keshar and Jayapatri.

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

161097(1N) 0262BOM84

PUB DATE: 03-10-87 APP DATE : 21-09-84

C08C001 002, C08C004000

GUJARAT ENERGY DEV AGENCY

A PROCE~$ FOR THE EXTRACTION OF RUBBER FROM PARTHENUM ARGEMTATUM PLANTS

A process for the extraction of latex from a parthenium argentatum plant which comprises in subjecting the chopped pieces of the plant to the step of anaerobic digestion so as to cause a biodegradation of cellulose to thereby loosen the bond between latex, resin and cellulose, filtering the spent slurry, adding sodium hydroxide solution to the residue to form a liquor and

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PATENT SCAN 41

allowing the liquor to remain for a period sufficient for causing a separation of lignin and resin from latex and, thereafter, extracting latex from said mixture.

PAT NO/CC

APPNO

INTCIASS

APPLICANT

TITLE

161722(FR) PUB DATE: 23-01-88

APP DATE 17-09-83 1137CAL83

A02·3N 0 1000

ROTABOLT LTD

METHOD AND INSTALLATION FOR THE EXTRACTION OF NATURAL FLAVOUR OF PLANT PRODUCTS

A method for the extraction of natural flavours of plant origin in particular, fruits vegetables, seeds or aromatic plants wherein organoleptic properties are retained characterised in that the plant products are reduced to a fine slurry containing the flavour and the pectins, to said slurry a solvent such as herein defined is added, which, when heated, forms with water a heteroge­neous and azeotropic mixture having a boiling point below the stability limit temperature of the principal essences constituting the flavour, the slurry is heated in a reactorat the boiling point of the azeotropic mixture, the vapours are condensed in a separate vessel, the condensate obtained is decanted so as to separate the water and the solvent, said solvent recycled to the reactor, -the distillation is stopped at the moment when the temperature in the reactor suddenly rises and becomes clearly higher than the boiling point of the azeotropic mixture, the mixture remaining in the reactor is then filtered in order to separate the solid matter from the solvent containing the flavour, and the flavour is isolated from the solvent by any appropriate method, and, if desired, the solid matter derived from the foregoing extraction is subjected to further extraction with same solvents as for initial extraction or other solvents, such as herein defined which form azeotropic but homogeneous mixture with water e.g., (a) alCohols, such as ethanol, isopropanol or isobutanol, (b)ketones, such as methyl-ethyl ketone, methylisopropyl ketone.

PAT NO/CC APPNO

lNTCLASS

APPLICANT

TITLE

162300(IN) PUB DATE: 23-04-88

0168DEL85 APP DATE : 27-02-85

D21D005000

CSIR

A PROCESS FOR THE PREPARATION OF SEMICHEMICAL PULP FOR PRODUCTION OF PAPER FROM COTTON PLANT STALKS

A process for preparation of semi-chemical pulp from cotton plant stalk by a modified chemi­thermo-mechanical process using 5% to 15% of sodium hydroxide and 5% sodium hydroxide plus 5% sodium sulphite, as NA:20 on the oven dry weight of the raw material in a rotary bomb digester, at a material to liquor ratio of 1:3, soaking the material in chemicals at elevated temp, of 110°C temp. and3.5 kg/ cm2 pressure for 20 mm. to faCilitate better penetration of chemicals and for softening of lignin thereby causing weakening of bondages between the fibres- which otherw.ise was very difficult to achieve, followed by further . digestion at a 13QoC temp. and 4.5 kg/ cm2 pressure for 110 min, removing the black liquor refining the cooked material in a disc refiner in two pass (15+10 thou), screening of the pulp, beating the pulp in a valley beater

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42 J. INTELLEC. PROP. RIGHTS, JANUARY 1996

followed by bleaching using hypochlorite in two stages at 45°C temp 5% consistency for two hours.

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

162441(1N) PUB DATE: 28-05-88

0958DEL84 APP DATE: 26-12-84

A61K027014

CSIR

A PROCESS FOR THE PREPARATION OF HYDROCHLO STEROLEMIC/HYPOLIPIDEMIC ACTIVE EXTRACT OF RHIZOMES OF SURCUMA SPECIES OF PLANT MATERIALS

A process for the preparation ofhydrochlosterolemic/ hypolipidemic active extract of rhizomes of surcuma species of plant materials comprising treating the dried plant material with a non-polar organic solvent to obtain a greenish yellow oily liquid, removing the solvent from the same by known methods and subjecting the solvent free liquid to fractionation by known methods to obtain the desired pale yellow liquid active extract.

PAT NO/CC

APPNO

INT CLASS

APPLICANT

TITLE

162579(1N) PUB DATE: 11-06-88

0286DEL85 APP DATE 06-04-85

A61K021 000,A61K021 000

SINGH RP A PROCESS FOR THE PREPARATION OF EXTRACT OF THE STEM BARK OF PLANT STREBULUS ASPER

A process for the preparation of extract of the stem bark of the plant strebl.us asper effective in the treatment of diseases like Filariasis including Mictrofilaria Carriers, Flarial Lymphenhitis, Filarial lymphoedema, Elemphantisis comprising soaking 1 kg of finely powdered dried stem bark in 5litres of water and boiling the soaked powder in a total quanitity of 10 litres of water; the boiling being continued till an extract of 2.5litres is left; filtering the said aqueous extract and keeping it for approximately 8 to 10 hours to allow the suspended particles in the fiiterate to settle; removing the said solid particles from the said filterate by known methods such as decantation; heating the clear filterate to concentrate the aqueous extract and drying the concentrated extract in a drying oven at temperature between40° to 50°C for six hours; cooling the dried extract for one hour in a moisture free atmospheric condition, the dried and cooled extract thus obtained is finally powdered.

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

162990(US) PUB DATE : 30-07-88

0302MAS86 APP DATE 21-04-86

AOIN031002

UNION OIL CO A PROCESS FOR PREPARING A COMPOSITION FOR REGULATING THE GROWTH OF PLANTS

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PATENT SCAN 43

A process for preparing a composition for regulating th e growth of plants which comprises adding lactic acid, of which at least 60% is dextrotatory L-(d)-isomer of lactic acid present in a molar concentration of 10-10 to 10-2 to an acid other than lactic acid wherein the acid and a pH buffer which do not react with the lactic acid wherein the acid other than lactic acid is present in an amount to maintain the composition pH of not more than 5.

The composition under invention will be of very use in the field agriculture for regulating for stimulation as well as inhibiting the plant growth.

PAT NO/CC APPNO

INT CLASS

APPLICANT

TITLE

165214(1N) PUB DATE: 26-08-89 1052DEL85 APP DATE: 12-12-85

C07C175000

CSIR A PROCESS FOR THE PREPARATION OF A NON-STEROIDAL ANTI-INFLAMMATORY

A process for the preparation of a non-steroidal anti- inflammatory, analgestic, antipyretic and tranquilosedative drug from Massa chisia D. Don var. anqustifolia Hook. f. and Th. plant leaves which comprises extracting the leaves of the said plant with methanol, concentrating the extract at a temperature not exceeding 100°C, treating the resultant concentrate with ethyl acetate and lyophalising the resulting extract.

PAT NO/CC APPNO-

INTCLASS

APPLICANT TITLE

165855(US) PUB DATE: 27-01-90 0159DEL86 APP DATE : 25-02-86

B29B009000

FIRESTONE TIRE AND RUBBER CO

A PROCESS FOR PRODUCING A DENSIFIED PELLET OF GUAYULE PLANT MATERIAL

A process for producing a densified pellet of guayule plant material which contains a substantial portion of its molecular weight over a period of time characterised in that the ground guayule plant material is shear free compressed at a pressure from 1,000 to 40,000 pounds per linear inch, and forming a densified brittle pellet having a 90 per cent to 325 per cent increase in density so that said pellet retains at least 70 per cent of its molecular weight during storage for a two weeks period of time.

PAT NO/CC APPNO INTCLASS

APPLICANT TITLE

165945(FR) PUB DATE: 17-02-90 0423CAL87 APP DATE 27-05-87 A61K039000

PASTEUR VACCINE

A PROCESS FOR THE PREPARATION OF AN ANTIGENIC FRACTION INTENDED TO BE USED AS THE ACTIVE PRINCIPLE IN AN 0 RAL CHO LERA VACCINE

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44 J,INTELLEC. PROP. Rl GHTS,JANUARY ] 996

A process [or the preparation of an antigenic fraction intended to be used as the active principle in an bral cholera vacc in e characterized :n that one prepared inoculums in agitated culture and in rich nutritive medium, from V. cholerae strains of the Ogawa or Inaba serotypes, chosen fro m among the smooth pathogen strains and in that, these inoculums are then used to culture the cholera vibro in a medium which is poor in nutritive elements and free of iron, whereby th e biosynth esis of surface antigens and the liberation into the culture medium, of a particulate antigenic complex of smooth lipo-polysaccharide and of outer membrane proteins is favo ured, sa id complex having a diameter between 20 and 100 nm, a sedimentation speed of30 S in 5-15% sucrose gred ient, and one subjects the supernatant, after elimination of the bacterial cell bodies, to separation by a method such as herein described by which particles of the antigen ic complex having a molecular weight above at l.east around 100,000 are recovered, said particles be ing optionally subjected to heat treatment in the presence of a dissociating agent such as herein described.

PAT NO/CC

APPNO

INTC LASS

APPLICANT

T ITLE

167304(U5) 0310DEL86

C09FOOlO02

PUB DATE: 06-10-90

APP DATE: 03-04-86

FIRESTONE TIRE AND RUBBER CO

PROCESS FOR SIMULTANEOUSLY EXTRACTING RESIN AND RUBBER FROM GUAYULE PlANTS

A process for s imultaneous ly extracting resin and rubber from guayule plants , comprising the steps 0[: (i)adding to the guayule plant at least 50% of a recycled miscella so lvent system as herein described to prepared guayule plant material; (ii) extracting in any known manner resin and rubber simultaneously from said quayule plant material and (iii) conducting at least one expression step in a manner as herein described on said remaining treated guayule plant material to extract remaining resin, rubber or both and said recycled miscella.

PAT NO/ CC APP 10

I TCLASS

APPLICANT

TITLE

168300(IN) PUB DATE : 09-03-91

1048DEL87 APP DATE: 08-1 2-87

A61K035078

CSIR

A PROCESS FOR SEPARATION OF PURE PLANTAGO OVATA (ISAPGOL) MUCILAGE FROM ITS WHOLE SEED AND SEED HUSK

A process [or the separation of pure plantago Ovata (isapgol) mucilage from its whole seed and seed husk which comprises suspending th e whole seed or the seed husk in water to form a thick viscous mucila ginous suspension, treating the suspension with aqueous alkali hydroxide so lu tion to liquify and thinning the suspension, filtering the suspension and then acid ifying it to a pH 2.0, washing the precipitated mucilage with water, then with ethanol and finally with acetone, dried and then powdered.

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PAT NO/CC APPNO

INTCLASS APPLICANT

TITLE

PATENT SCAN

168372(ME) PUB DATE : 23-03-91

0157DEL87 APP DATE : 24-02-87

B02B003000,B02C013000,C07GO 17000

SALETE F PROCESS FOR OBTAINING HIGH PURITY MUCILAGE FROM PLANTAGO PSYLLIUM SEEDS

45

A process for obtaining high purity mucilage trom Plantago Psyllium seeds, which esentiaily comprises steps of: (a) subjecting cleaned integral plantago psyllium seed to grinding to loosen the hu sk from the core of the grain; (b) removing the husk from the core of the seeds in order to form two separate streams; (c) repeating steps (a) and (b) the necessary number of times to accomplish an optimal husking of the seeds; and (d) recovering the husk having a high content of mucilage, as the product of the process, characterised in that said grinding is achieved by pure impact without rubbing, at an impact speed of 30 to 40 m/sec, and during th e grinding step, maintaining the individual·seeds individually spaced from each other in order that the strength of the impacts thereon may be the same for each seed, thereby loosening and separating the husk from the core of the grain without disintegrating the latter.

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

168728(IN) PUB DATE : 25-05-91

1154DEL87 APP DATE : 31-12-87 A61K035078

CSIR

AN IMPROVED PROCESS FOR THE PRODUCTION OF COLEONOL FROM THE ROOTS OF THE PLANT COLEUS FO RSKO HLIT BRIG (SYN c. BARBATUS)

An improved process for the production of coleonol from the roots of the plant Coleus Forskohlit Brig (Syn. c. Barbatus) which comprises grinding the root to form a powder, extracting coleonol from the powdered root by solvent extraction using dichloroethane, recovering the solvent dichloroethane by distillation, using the recovered solvent to extract additional fresh powder evaporating the dichloroethane, chromatographing the residue on silica gel; then eluting it using dichloroethane as the eluent, recovering the solvent, and if required, and reusing the recovered' solvent for the extraction of further fresh powder of the root, and/ or in the chromatographic step, crystallising the crude coleonol from dichloroethane.

PAT NO/CC APPNO INT CLASS APPLICANT TITLE

169097(GB) PUB DATE : 07-09-91

0443CAL88 APP DATE : 31-05-88 A23F003042j\23F005048j\23F005050 UNILIVER PLC

METHOD OF STRIPPING AND RECOVERY OF AROMA AND FLAVOUR COMPOUNDS FROM PLANT MATERIALS

A methQd of stripping aroma and flavour compounds from a plant material, such as hereinbe­fore described which comprises the steps of subjecting the plant material to microwave

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46 J INTELLEC. PROP_ RIGHTS, JANUARY 1996

radiation in the presence of moisture to release a substantial portion of said moisture, said aroma and flavour compounds as a vapour, and collecting the vapours a condensate.

PAT NO/CC APPNO

INTCIASS

APPLICANT

TITLE

170624(US) ptjB DATE : 25-04-92

0294DEL87 APP DATE: 08-04-87

A23N015010

GENERAL FOODS CORPORATION

METHOD FOR THE TREATMENT OF GREEN COFFEE BEANS OF UNDESIRABLE FIAVOURAND AROMA TO PROVIDE BEANS OF UPGRADED FLA.VOUR

A method for the treatment of green coffee beans having undesirable flavour and aroma to provide beans of upgraded flavours which comprises subjecting said beans having undesired flavour and aroma to steam pressure treatment and moisture prior to roa ' ting, characterised in that: a) said green coffee beans having undesirable flavour and aroma are contacted with steam at a pressure of 20 psig to 70 psig and at a temperature of 258°F to 316°F for a period of 0.5 to 3 minutes; b) said steam-treated beans are contacted with moisture for a period of 0.5 to 2 minutes; and c) said moistured beans are further contacted with steam at a pressure of 20 p sig to 70 psig and at a temperature from 258°F to 316°F for a period of 0.5 to 4 minutes, followed by said roasting.

PAT NO/CC APPNO

INTCIASS APPLICANT

TITLE

171098(GB) PUB DATE: 18-07-92

0238CAL90 APP DATE : 22-03-90

A23L001022.A23L001022.A23F003042.A23F005048.A23F005050 UNILEVER PLC

A METHOD FOR EXTRACTING AROMA AND FIAVOUR COMPOUNDS FROM PLANT MATERIALS

A method for extracting aroma and flavour compounds from a plant material comprising the steps of: (a) stripping aroma and flavour compounds from the plant material by the steps of subjecting the plant material to microwave radiation in the presence of moisture to release therefrom a substantial portion of moisture, stair aroma and flavour compounds as a vapour, and collecting the vapour as a condensate; (b) subjecting the stripped plant material of step (a) to further processing such as herein described and the squeegee is fixed to a carriage which is supported on guides fixed to the machine frame so that it moves to and fro parralJe! to and above the screen, coupling means being present between the squeegee also always moves precisely above the object at least during the printing, and there are means which set the squeegee to the desired height for the spreading stroke and for the printing stroke, alJ this in such a way that the printing can also be carried out over several revolutions.

PAT NO/ CC APPNO INTC LASS

171129(IN) PUB DATE: 25-07-92 0092BQM90 APP DATE: 25-04-90

C11B003004

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APPLICANT TITLE

PATENT SCAN

HINDUSTAN LEVER LTD

TREATMENT OF NEEM OIL

47

A process of I.!pgrading neem oil by treating the neem oil with hydrogen chloride in the form of aqueous hydrochloric acid of at least 7N concentration, and thereafter separating the resulting precipitate from the oil.

PAT NO/CC APPNO INT ClASS

APPUCANf TITI.E

171756(IN) 0180BOM90

A61K035078

PATELAH

PUB DATE: 26-12-92

APP DATE : 09-07-90

AN IMPROVED PROCESS FOR PREPARING AYURVEDIC MEDICINAL PlANT BASED AYURVEDIC PlANT SMOKING CIGARETrE

A process for preparing ayurvedic smoking cigaratte having medicinal value comprising the blending of bits of Abies Webiana, Adharoda vasiea, Convolvhm pluricautis, Vitex Negundo, PermeJia Periota, Hyoscyamus Niger and Andropogon myricatus. Bits of before said herbs are soaked in the solution made of following herbs: Achyranthes Aspera, Carcuma Longa, Acacia Catechue, An10mus sabulatum, Cinnamomum Zeplanicum Blume, Cinnamonum Camphora, Sodi biborus, and Rosa Damiscena and then soaked bits of Abies Webiana, Adhatoda Vasica, Convolvius pluricantis, Vitex Negundo, Permclia Periota, Hyoscyamus Niger, and Andropogon myricatus' dried in drying compartment kept at temperature of 35°C to 45°C for 1 to 2 hrs. and then after the drying of soaked bits'of Akbies Webiana, Adhatoda Vasica, Convo Ivins pluricau­tis, Vittex Negundo, Permelia Perfota, Hyoscyamus Niger, and Andropogon Myricatus are redried inside a tray drier and kept in diffused sunlight for half an hour and then the substances are filled automatically inside the rolled paper in cigaratte form with a filter in required length by cigaratte vending machine.

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

171764(IN) PUB DATE : 02-01-93

0332BOM90 APP DATE 14-12-90

C11COO1008

HINDUSTAN LEVER LTD AN IMPROVED PROCESS FOR THE PREPARATION OF PURIFIED OIL OF PlANT MATERIAL

A process for the preparation of purified oil of plant material which comprises subjecting the oil (a) to a first step of acid degumming (b) then neutralisation followed by (c) bleaching the degumming step being carried out by treating the said oil with anagaeous solution of phospho­ric acid whereafter so treated oil is further treated with water followed by washing the oil after the second treatment step with an electrolyte solution, allowing the oil so treated as above to settle and separating the bottom layer containing gummy/waxy matter, (the degummed oil being then neutralised using excess caustic soda of 50% to 200% than stoichio-metrically required) the caustic soda being of 2N to 5N strength and having less than 0.2% sodium

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4il 1. INTELLEC. PROP. RIGHTS,JANUARY 1996

chloride, the thus neutralised oil being then allowed stand to settle the residue whereafter the clear oil is sepc:rated and subjected to washing with water, whereafter th e washed neutrali sed oil is dried under vacuum and bleached in a conventional manner.

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

171888(IN) PUB DATE: 30-01-93

0070BOM91 APP DATE 13-03-91

Cl 18003002,Cl1B003010

HINDUSTAN LEVER LTD

A PROCESS FOR TREATING (UPGRADING) NEEM OIL

A process for treating (upgrading) neem oil, comprising the steps of: (i)contacting neem oil with at least one solvent having polar solubility parameter values and hydrogen bonding so lubility parameter values falling within an area defined by the polygon ABCDEF shown in fi g. of the drawings accompanying the provisional specification the apexes of sa id polygon being as defined in Table I; and (ii)Separating the oil and solvent phases and thereafter isolating th e desired products therefrom in any conventional manner.

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

171899(IN) PUB DATE: 30-01-93

APP DATE 19-03-91

C11B003002,Cl1B00301O

HINDUSTAN LEVER LTD

A PROCESS FOR TREATING (UPGRADING)NEEM OIL HAVING HIGH FREE FATIY ACID CONTENT

A process for treating (upgrading) neem oil having high free fatty acid content, comprising the following steps: (i) esterifying, at least partially, the free fatty acid in the neem oil, (ii) contacting th e esterified neem oil with at least one solvent such as herein described, and (iii) separating the oil and solvent phases and thereafter isolating the desired products th erefrom in any conventional manner.

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

172150(IN) PUB DATE : 17-04-93

0231BOM91 APP DATE 08-08-91

A61N065000

GODREJ SOAPS LTD

A PROCESS FOR THE ~REPARATION OF NEEM OIL FATTY ACID DISTILLATION RESIDUE BASED PESTICIDE

A process for the preparation of neem oil fatty acid distilltion residue based pesticide consisting of: (i) saponifying the neem oil fatty acid distillation residue with an aqueous alkali sHch as herein described at 85 to 140°C and atmospheric pressure, the concentration of the alkali in water being 10 to 50% by weight and the molar ratio of the residue and alkali being 1: 1.05 to 1: 1.2; (ij) drying the resulting soap at 100-110°C; (iii) allowing the resulting soap cake to cool down to room temperature; (iv) pulverising the soap cake; (v) fortifying t~le resulting fines by mixing with 5 to 10% by weight of neem oil; (vi)allowing the fines to dry at room temperature

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PATENT SCAN 49

and obtain the pesicide; and (vii) if desired, forming an aqueous emulsion of the pesticide by mixing the pesticidal fines water at room temperature in the ratio 0.5: 100 to 3: 100.

PAT NO/CC APPNO

INT CLASS

APPLICANT

TITLE

173150(US) PUB DATE: 19-02-94

0847MAS91 APP DATE : 14-11-91

C12N009100

PHILIP MORRIS PRODUCTS INC

A PROCESS FOR PREPARING PURIFIED PUTRESCINE N­METHYLTRANSFERASEFROM A TOBACCO PLANT EXTRACT

A process for preparing purified putrescine N-methyltransferase from a tobacco plant extract comprising the steps of: (a) applying the extract to an anion exchange medium, wherein th e application temperature and the pH and chemical composition of the extract are such that putrescine N-methyl- transferase is retained by the anion exchange medium and (b) eluting th e putrescine N-methyltransferase from the anion exchange medium with an elution buffer comprising an effective amount of a polyamine selected from putrescine, N- methylputrescine, spermin e, spermidine, agmatine, cadaverine, or a mixture thereof. wherein the elution tem­perature and the pH and chemical composition of the elution buffer are such that but for th e polyamine the putrescine N-methyltransferase would be retained by the anion exchange medium.

PAT NO/CC APPNO

INT CLASS

APPLICANT

TITLE

173327(IN) PUB DATE: 02-04-94

1012DEL89 APP DATE 03-11-89

A61K027000,Cl1B003012

GUPTAR

A PROCESS FOR EXTRACTION OF NEEM OIL

A process for extraction of neem oil from neem seeds comprising in treating crushed neem seeds in an soxhlet solvent extraction system containing polar solvents of the kind as herein described at a temperature of 40-60°C to obtain an oil cake free from bitter and offensive odoriferous constituents. drying said oil cake and then subjecting the same to the step of solvent extraction using haxane as a solvent to obtain refined debitterized and deodorized neem oil.

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APPLICANT

TITLE

173328(IN) PUB DATE : 02-04-94

1014DEL89 APP DATE : 03-11-89

C11B003012

GUPTAR

A PROCESS FOR ISOLATIQN OF ACTIVE BITTER AND ODORIFEROUS CONSfITUENTS FROM NEEM SEEDS

A process for the isolation of active bitter and odoriferous constituents from neem seed which comprises in subjecting the crushed seed to a treatment in an aqueous system containing polar solvents to obtain an extract at a temperature of 40°C to 60°C, subjecting the extract to the step

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50 J. INTELLEC. PROP. RIGHTS, JANUARY 1996

of distillation to obtain an amalgam containing active bitter and odoriferous constituents of the neem seed.

PAT NO/CC APPNO

INTClASS

APPLICANT

TITLE

173449(US) PUB DATE: 07-05-94

lOO2DEL88 APP DATE 17-11-88

A01N02S000

ROHM AND HAAS CO

AN IMPROVED PROCESS FOR THE PREPAF:ATION OF NOVEL HYDROGENATED PLANT EXTRACT HAVING DIHYRO-AZADlRACHTIN OR TETRAHYDROAZADIRACHTIN

An improved process for the preparation of novel hydrogenated plant extract having dihy­droazadirachtin or tetra- hydroazadirachtin, possessing enhanced insecticidal properties which comprises: extracting in any known manner an azedirachtin- containing plant extract; and subjecting said extract to hydrogenation under hydrogenation conditions such as prede­termined pressure and at a temperature in the range of 100C to 50°C.

PAT NO/CC APPNO

INTCLASS

APPLICANT

TITLE

173559(IN) PUB DATE : 04-06-94

1043DEL88 APP DATE : 29-11-88

C11B009000

CENTRAL COUNCIL FOR RESEARCH IN AYURVEDA AND SID DHA DHARl\tIA BHA V AN

A PROCESS FOR ISOLATION OF A NIMBATIKTAM OR NIMBIDIN FROM NEEM OIL

A process for the isolation of nimbatiktam or nimbidin from neem oil which comprises the step of extraction of oil with ethyl or methyl alcohol, concentrating said alcohol extract over water bath, dissolving the concentrated extract in alcohol and washing with pet-ether to remove oily fatty matters, adjusting the alcohol concentration of alcohol layer upto 80% by adding alcohol and then again washing with pet-ether, the purified alcohol extract being concentrated and then poured into water to obtain crude nimbatiktam or nimbidin, g rinding the crude nimbidin ill the presence of water by a rod or postle, filtering and drying the ground nimbatiktam or nimbidin in air.

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INTCLASS

APPLICANT

TITLE

173796(IN) PUB DATE: 16-07-94

01S0DEL89 APP DATE : 23-05-89

A61K031000

CSIR A PROCESS FOR THE PREPARATION OF A FRACTION MAINLY CONTAINING PICROSIDE I AND KUTKOSIDE HAVING HEPATOPROTECTIVE

A process for the preparation of fraction mainly containing a) picroside [la. 1 b. 2, Sa. 6, 6a-hexahydro 6-hydroxy 1a (hydroxy methyl)-oxireno (4.5) cyc\openta (l,2c) pyran-2-yl 6-(3-

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PATENT SCAN !) l

phenyl-2 propanoate), [la,S-(1aa- 1bp,2P(E), 5ap,3,6a,lpD- glycopyranoside] (b) kutkoside [la,lb,2,5a, 6,6a-hexahydro-6- hydroxy-1a(4-hydroxy-3-methoxy benzyl) oxylmethyl) oxireno (4,5)- cyclopenta (1.2-c) pyran-2-3D-glucopyranoside) and (c) other unidentified substances the amount of (a) and (b) ranging from 50-70%, the ratio of (a) and (b) being 1:1.5 to 1:2 by weight, the amount of (c) being 30-50% which comprises: (i) extracting the root and/ or rhizome powder of the plant P. kurrooa with a polar organic solvent and then evaporating the solvent to concentrated extract, (ii) fractionating the said extract using the organic solvent or mixture of organic solvent and water to form organic phase and aqueous phase and thereafter discarding the organic phase, (iii) treating the aqueous phase again with a more polar solvent or a mixture of such solvents and water to form an organic solvent phase and aqueous phase, (iv) washing the organic solvent phase with water.

(v) Decolourising the washed organic solvent phase from step (iv) with known decolourising agent, (vi) filtering the treated phase obtained from step, (v) then evaporating the decolourised filtrate to dtyness, and macerating the dried product with a nonpolar solvent for removing less polar impurities to obtain the final product.

PAT NO/CC APPNO

INT CLASS APPLICANT

TITLE

173941(IN) PUB DATE : 13-08-94

0285DEL90 APP DATE 22-05-90

A23D005000, C 11BOO 1000

CSIR , AN IMPROVED PROCESS FOR THE EXTRACTION OF SUPERIOR GRADE PALM KERNEL MEAL AND OIL FROM PALM KERNEL

An improved process for the extraction of superior grade palm kernel meal and oil from palm kernel which comprises air drying palm kernel separated from oil palm nut obtained from fresh oil palm fruit so as to have 5-6% moisture, cleaning the dried palm kernel with running water, treating the cleaned palm kernel with hydrochloric acid having a strength of IN to 8N at a temperature in the range of 95+ PC for a period 1-45 minutes, draining the treated kernel to remove the acid, washing the acid-free kernel with water, drying at a temperature in the range of 55-60°C, grinding it to a particle size of 10 mesh (BSS) extracting the said ground kernel with food grade hexane at room temperature and recovering meal and oil from extract by known methods.

PAT NO/CC APPNO INT CLASS

APPLICANT

TITLE

173942(IN) 0308DEL90 A61K035078

CSIR

PUB DATE: 13-08-94

APP DATE : 27-03-90

A PROCESS FOR THE PREPARATION OF ARBORTRISTOSIDE A, ARBORTRSRISTOSIDE B

A process for the separation of arbortristoside A. arbortristoside B, arbortristoside C, arbor­tristoside D, arbortristoside E and 6p hydroxyloganin having antileishmenial activity from the

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J. INTELLEC. PROP. RIGHTS, JANUARY 1996

seeds of Nyctanthes arbor- tristis, which comprises extracting the seeds of the plant with an organic so lvents, subjecting the resultant extract to gross column chromatography on silica gel column, eluting the column successively with a combination of organic solvent having cli(ferent polarities such as hexane, hexane chloroform, chloroform containing increasing percentage of methanol and methanol to obtain a mixture of irisoids arbortristoside A, <1rbortristoside B, arbortristoside C, arbortristoside D, arbortristoside E and 6!)-hydroxy logan in, characterised in that subjecting the said mixture to fine flash column chromatography over silica gel 230-400 mesh Acme eluting with a combination of chloroform: methanol followed by subjecting to preparative TLC using eluents selected from combination of ethyl acetate and methanol to get iridoids as (arbortristoside .A, arbortrisstoside B, arbortristoside C, arbortris­tosid e D, arbortri stoside E and6-~ hydroxyloganin) in pure forms separately.

PAT NO/CC APPNO

INTCLASS APPLICANT

TITLE

173943(IN) 0309DEL90

A61K035078

CSIR

PUB DATE : 13-08-94

APP DATE : 27-03-90

A PROCESS FORTHE PREPARATION OF IRlDOIDS HAVING ANTILEISHMANIALACfIVITI FROM THE SEEDS OFTHE PLANT NYCfANTHES ARBORTRlSTIS LINN

A process for preparation of a mixture of iridoids having antileishtnanial activity from the seeds of th e plant nyctanthes arbortristis which comprises extracting the seeds of the said plant with organic so lvents, subjecting the resultant extract to gross column chromatography over silica gel, eluting the column successively with a combination of organic solvents of different polarities such as hexan e, hexane-chloroform, chloroform containing increasing percentage of methanoi and methanol to obtain a mixture of iridoids having antileishmanial activity.

PAT NO/CC APPNO

INT CLASS APPLICANT

TITLE

173989(DO) PUB DATE : 20-08-94

0560DEL90 APP DATE : 06-06-90

A01N065000

TRlCOLIO-M GMBH HERSTELLUNG UND VERTRlEB HOCHREINER BIOSUBSTANZEN A PROCESS FOR THE PREPARATION OF STORAGE STABLE AZADIRACHTIN-RICij EXTRACf FROM COMPONENTS OF THE NEEM TREE, PARTICULARLY NEEM SEED KERNELS

A process for the preparation of storage stable azadirachtin rich extract fro m components of the neem tree, particularly neem seed kernels, which comprises:(i) comminuting the larger of said neem tree components; adding to the comminuted neem componems water as a solvent to extract azadirachtin therefrom,(ii) separating in any known manner the azadirachtin­containing aqueous solvent from said neem components which now possess little azadirachtin content; (iii) adding to the separated azadirachtin containing aqueous extract a second solvent such as herein described which is not substantially miscible with water but within which azadirachtin is more soluble than in water whereby the mixturo of aqueous extract and second

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PATENT SCAN 53

solvent separates into an aqueous phase and azadirachtin-rich solvent phase; (iv) removing in any known manner the azadirachtin-rich solvent phase; (v) concentrating said azadirachtin­containing solvent phase; adding to the concentrate thus formed from 1 to 20 times by volume liquid hydrocarbons whereby the azadirachtin in said concentrate precipitates; and (vi) recov­ering in any known manner the azadirachtin-rich precipitate.

PAT NO/CC APPNO INTCLASS APPLICANT TITLE

173996(IN) PUB DATE : 20-08-94 1124DEL90 APP DATE 14-11-90 A01N045000,A61K031000 CSIR A PROCESS FOR TIlE PREPARATION OF AN ACTNE COMPOSmON CONTAINING TRITERPENES INCLUDING AZADIRACHTIN AND ITS DERIVATNES POSSESSING INSECT ANTIFEEDANT AND GROWfH INHIBITORY ACTMTY FROM PARTS OFTHE NEEM PLANT

A process for the preparation of insecticidally active composition mainly containing mixture of triterpene derivatives of azadirachtin, from the parts of the neem plant which comprises: (a) grinding the parts of the neem plant to get powder, (b) extracting the powder with a binary immiscible solvent consisting of one water miscible polar and other non-polar solvent in a ratio of 1:2, (c) filtering the resultant extract to get a filtrate having two layers, one layer containing the lipids and the other layer containing mixture of triterpene derivatives of azadirachtin, its derivatives and water soluble constituents including sugars, (d) separating the layers by known methods, (e) concentrating the layers containing the triterpenes including of azadirachtin its derivatives and water soluble constituents including sugaFS,(t) treating the resultant concen­trate with a water immiscible polar solvent, and (g) filtering/decanting the resultant solution to produce a filtrate containing the mixture of triterpenes of azadirachtin and its derivatives.

PAT NO/CC APPNO INTCLASS APPLICANT TITLE

173997(IN) PUB DATE: 20-08-94 1125DEL90 APP DATE 14-11-90 A01N045000,A61K031000 CSIR A PROCESS FOR THE PREPARATION OF INSECTICIDALLY ACTNE COMPOSITION CONTAINING LIPIDS FROM THE NEEMPLANT

A process for the preparation of insecticidally active composition mainly containing lipids from the parts of neem plant which comprises:(a) grinding the parts of the neem plant to get powder, (b) extracting the powder with a mixture of two immiscible solvents consisting of one water miscible polar and another non-polar in a ratio of 1:2, (c) filtering the extract to get a filtrate having two separable layers one layer containing lipids and the other containing mixture of triterpene of azadirachtin its derivatives and water soluble constituents including sugar, (d) separating the layers by known methods, (e) concentrating the non polar solvent layer contai.ning the lipids to obtain the total lipids dissolving the above lipids in a water immiscible

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]. INTELLEC PROP. RIGHTS, JANUARY 1996

polar solvent and chilling the solution at a temperature in the range 0° to - 10° for 12 hours and filtering to produce insecticidally active composition containing unsaturated lipids.

PAT NO/CC APPNO

INTCLASS

APPLICANT TITLE

173998(1N) PUB DATE : 20-08-94

1126DEL90 APP DATE 14-11-90

A01N045000,A61K031000 CSIR

A PROCESS FOR THE ISOLATION OF NEW TRITERPENE DERNATNES OF AZADIRACHTIN FROM THE PARTS OF NEEMTREE

A process for isolation iof new triterpene derivatives of azadirachtin which comprises: (a) grind­ing the parts of the neem plant to get a powder,(b)extracting the powder with a binary immiscible solvent consisting of one water miscible polar and another non-polar solvent in a ratio of 1:2,{c) filtering the extract to get a filtrate having two layers, one layer containing the lipids and the other layer containing the mixture of new and known triterpenes derivatives of azadirachtin and water soluble constituents including sugars,{d)separating the layers by know!'! methods,{e)concentrating the layer containing the mixture of new and known triter­pene constituents of azadirachtin its derivatives and water soluble constituents,{f) treating the resultant concentrate with a water immiscible polar solvent, and (g) filtering the resultant solution to produce a filtrate containing and mixture of new triterpene derivatives of azadi­rachtin and known derivatives of azadirachtin, including azadirachtin and(h)separating the individual new triterpene derivatives of azadirachtin by conventional chromatoigraohy.

PAT NO/CC APPNO

INTCLASS APPLICANT

TITLE

174695(IN) 0521CAL92 A61K035078

PUB DATE : 18-02-95

APP DATE: 22-07-92

TARAKESW AR CHAKRABORlY

PROCESS FOR THE PREPARATION OF ACTIVE PRINCIPLE FOR TREATMENT OF DIABETIS AND PHARMACOLOGICAL COMPOSITIONS THEREOF

A process for the ·manufacture of anti-diabetic agent from Gymnema sylvestra leaves by water extraction characterized in that the cleaned leaves are subjected to extraction in hot-water at temperature in the range of 50° to 85° C at a pH of 6.0 to 7.0 in the presence of preservative selected from sodium benzoate and chloroform, whereafter the extracted water is subjected to evaporation and concentration to obtain a gummy mass containing the active principle, at sub-atmospheric or atmospheric pressure.