paper on jatropha curcas from mittelbach

8/8/2019 Paper on Jatropha Curcas From Mittelbach

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Jakarta, November 20-21, 2006


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Symposium on Biofueland Industrial Productsfrom Jatropha curcas and other Tropical Oil SeedPlants

Managua / Nicaragua23 - 27 February 1997


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Biomass Project within an Austrian

Development Help Project in Nicaragua1990 2000

Evaluation of Jatropha curcas L. asenergy plantCultivation of 1.000 ha

The biofuel part, however, suffers from thedevelopment of fossil fuel prices, whichmakes the production of diesel from physicnut uneconomical at the moment.


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Biodiesel from Oil of Jatropha Curcas L.

FAME from

Fuel Parameter Rape Seed Jatropha curcas

Cetane Number 49 - 62 51 59

CFPP [C] -19 - -8 -3

Iodine Number 104 - 120 95 - 107

Oxidation Stability [h] 7 3


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CFPP of B100 vs. Saturated Fatty Acids

-20

-15

-10

-5

0

5

10

15

0 5 10 15 20 25 30 35 40 45 50

Content of Saturated Fatty Acid Chains [wt.%]

C F P P [ C ]

typical range ofBioDiesel derived fromRapeseed Oil

typical range ofBioDiesel derived fromUsed Cooking Oil

typical range ofBioDiesel derived fromAnimal Fat

Source: BDI, 2005

Jatropha


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Toxic Principles of Jatropha Curcas L.

Phorbol esters:mainly in the oil; esters of tigliane diterpenes

tumor promotion, cell proliferation, activation of bloodplatelets, lymphocyte mitogenesis, inflammation

Curcin:mainly in the oil cake; Ribosome-inactivating protein

Non-toxic varieties found in Mexico


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Separation of 6 New Compounds

3 kg of seed oilSeparation on silica with SPE

Column chromatography on silica: 3.52 g

2 x column chromatography

HPLC separation C8 reversed-phase HPLC [Spherisorb]

Final purification with HPLC

Isolation of compounds: 1-7 mg each

d f f d


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Identification of 6 New Compounds

Methods:

MALDI-TOF MS

NMR techniques including1H-1H correlation (COSY)1D and 2D total correlation (TOCSY)

disortionless enhancement by polarization (DEPT)heteronuclear multiple quantum/bond coherence(HMQC/HMBC)gradient-enhanced nuclear Overhauser effect

W.Haas, H.Sterk, M.Mittelbach: J. Nat. Prod. 2002, 65, 1434-1440


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DHPB: Hirota et al. 1998

O HO

OH

HO

H H

O

O O

O

H1

23 4

5 6

7

8

9

10

1112

13

14 1516

17

18

19

20

1'

2' 3'

4'

5'6'

7'

8'

9'10'

11'

12'

13'14'

15'

16'

17'

18'

19'

20'

21'

22'

23'

24'

N l Cl f C l b M j


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Novel Class of Cyclobutan Mojety


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Detoxification Experiments with the Seed Oil

Oil Raffination

Degumming Deacidification

Bleaching Desodorization

W.Haas, M.Mittelbach, Industrial Crops Prod. 2000


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Detoxification During Raffination

Untreated degumming

deacidification

bleaching desodorization

Summary


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Summary

Oil form Jatropha curcas L. is an excellent source for biodieselproduction

Fuel properties are almost similar to those of rape seed oil ME

Non edible oil ideal for utilization in Asian countries

Oil must be produced in specified plants

Quick essay for toxic compounds is necessary

Detoxification of oil cake would improve the economy

Research on non-toxic varieties


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Third edition 2006

340 pages

Publisher: Martin Mittelbach

Contact:

[email protected]

paper on jatropha curcas from mittelbach

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