comparative study on consumption of green & black tea extract to promote health & weight...
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A COMPARATIVE STUDY ON CONSUMPTION OF GREEN TEA & BLACK TEA EXTRACT TO PROMOTE
HEALTH & WEIGHT REDUCTION
PRESENTED BYLEPAKSI DEY
31/5/2012
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CONTENTS
ORIGIN OF TEA BLACK TEA AND GREEN TEA HOW DO THEY DIFFER PROCESSING OF GREEN TEA IN NORTH EAST INDIA PROCESSING OF BLACK TEA IN NORTH EAST INDIA PREPRATION OF TEA EXTRACT HEALTH ASPECT OF GREEN TEA HEALTH ASPECT OF BLACK TEA GREEN TEA AND WEIGHT LOSS CONCLUSION
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TEA IS THE AGRICULTURAL PRODUCT OF LEAVES,LEAF BUDS AND INTER MODES OF CAMELLIA SINENSIS PLANT.
TEA THE MOST WIDELY CONSUMED BEVERAGE NEXT TO WATER HAD ITS ORIGIN IN CHINA 4000 YEARS AGO.
CAMELIA SINENSIS ORIGINATES IN SOUTHEAST ASIA, SPECIFICALLY AROUND THE INTERSECTION OF LATITUDE 29ºN & LONGITUDE OF 98ºE THE POINT OF CONFLUENCE OF LANDS OF NORTH EAST INDIA, NORTH BURMA, SOUTHWEST CHINA & TIBET.
THE PLANT WAS INTRODUCED TO MORE THAN 52 COUNTRIES FROM THE CENTRE OF ORIGIN. THE EARLIEST APPLICATION OF TEA WAS MEDICINAL. THE STIMULANT AFFECT OF TEA LEAF WAS DISCOVERED BY LEGENDARY CHINESE EMPEROR
SHENNONG AROUND 2700 BC AGO. FOUR TYPES OF TEA MOST COMMONLY FOUND ON MARKET ARE BLACK TEA, GREEN TEA,
OOLONG TEA & WHITE TEA.
BNBNNBN
ORIGIN OF TEA
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BLACK TEA & GREEN TEA HOW DO THEY DIFFER
GREEN TEA
CAMELLIA SINENSIS
PARTIAL WITHERING
STEAMING/ PARCHING
ROLLIND & DRYING
FINAL FIRING
GREEN TEA (NON-OXIDISED)
INDOOR WITHERING
ROLLING
OXIDATION
FINAL FIRING
BLACK TEA(OXIDIZED)
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AVERAGE VALUE OF DIFFERENT CONSTITUENT PRESENT IN TEA BLACK & GREEN TEA
PRINCIPLE COMPONENT OF BLACK TEA
COMPONENT BLACK TEA(% weight of extract solids/100gm)
Catechin3-10
Theaflavin 3-6
Thearubigens 12-18
Flavanols 6-8
Phenolic acids & depsides 10-12
Amino acids 13-15
Methylxanthines 8-11
Carbohydrates 15
Protein 1
Mineral water 10
Volatiles <0.01
PRINCIPLE COMPONENT OF GREEN TEACOMPONENT GREEN TEA(% weight of
extract solid/100gm)
Catechin 30-40
Flavanols 5-10
Other Flavonoids 2-4
Theogallin 2-3
Other depsides 1
Ascorbic acid 1-2
Gallic acid 0.5
Quinic acid 2
Other organic acid 4-5
Theanine 4-6
Other amino acid 4-6
Methylxanthines 7-9
Carbohydrates 10-15
Minerals 6-8
Volatiles 0.0231/5/2012
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PROCESSING OF TEA
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DEVELOPMENT,PRE-PROCESSING & PROCESSING 0F COMMERCIAL GREEN TEA BY MARAPUR T.E. IN DARJEELING DISTRICT OF WESTBENGAL
LEAF HARVEST,PLUCKED TRANSPORT TO THE FACTORYPARTIAL WITHERINGSTEAMING &PARCHINGROLLING & DRYINGFINAL FIRINGPROCESSED GREEN TEA(NON OXIDIZED)
Preserving Green Tea Leaf Boiler Roster
Cooling System
Rolling TableTrolley Carrying Raw
MaterialsDryer Weighing Picking Final Product
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DEVELOPMENT,PRE-PROCESSING & PROCESSING 0F COMMERCIAL BLACK TEA BY PAHARGUMIAH T.E. IN DARJEELING DISTRICT OF WESTBENGAL
HARVESTED LEAF PLUCKED & TRANSPORT TO THE FACTORYWITHERINGROLLINGFERMENTATIONSORTING
FIG: BLACK TEA(CTC) PROCESSING IN PAHARGUMIAH T.E.
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PREPARATION OF TEA EXTRACTTEAS WITH LONGER OXIDATION PERIODS ARE BREWED AT HIGHER TEMPERATURE TO EXTRACT THE LARGE,COMPLEX,FLAVOURFUL PHENOLIC MOLECULES FOUND IN FERMENTED TEA.TEAS WITH LITTLE OR NO OXIDATIVE PERIOD ARE BEST BREWED AT LOWER TEMPERATURE.FOR ALL STUDIES TEA IS SERVED @ TEMP OF 37 ±1°C(98.6°F)
FOR PREPRAING DIFFERENT TYPES OF TEA EXTRACT THE TABLE BELOW IS FOLLOWED
TYPE OF TEA EXTRACT
QUANTITY OF TEA(gm)
AMOUNT OF WATER (ml)
WATER TEMPERATURE STEEPING TIME(MIN)
GREEN TEA 2 100ml 170°-180°F(77°C-82°C) 1-2
BLACK TEA 3 100ml 210°F(99°C) 2-3
WHITE TEA 3-5 100ml 150°-160°F(66°-71°C) 1-2
OOLONG TEA 3 100ml 180°-190°F(82°C-88°C) 2-3
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HEALTH ASPECT OF GREEN TEAREDUCE THE RISK OF CARDIOVASCULAR DISEASE &CANCERPROMOTE ORAL HEALTHNORMALIZE BLOOD PRESSURE (ANTI-HYPERTENSIVE)HELPFUL IN WEIGHT LOSSREDUCE THE SIGN OF AGING INCREASES BONE DENSITYPROTECTIVE ANGAINST SOLAR ULTRAVIOLET RAY
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HEALTH ASPECT OF BLACK TEA
REDUCE THE TOTAL CHOLESTEROL LEVELREDUCE THE TRIGLICRIDE LEVELSPREVENTS OXIDATION OF LDL CHOLESTEROL THE LEVELS OF VLDL & LDL SHOWED SLIGHT DECREASEEFFECTIVE IN BLOOD CANCER
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GREEN TEA AND WEIGHT REDUCTION
GREEN TEA IS REACH IN POLYPHENOL CALLED CATECHIN.
CATECHIN IN GREEN TEA WITH ITS PROPERTY OF THERMOGENESIS APPEARS TO SPEED UP CALORIE BURNING,INDUCING FAT CALORIE BURNING WHICH IS AN INDICATOR OF REDUCING BODY WEIGHT IF CONSUMED ON A REGULAR BASIS 4 CUPS A DAY. MONITORING 36 MALE AGED BETWEEN 35-40 YEARS WITHIN THE BMI RANGE OF 25-28.9KG/M²,CONSUMING 4 CUPS GREEN TEA EXTRACT FOR 90 DAYS AT EARLY MORNING AFTER BREAKFAST,AFTER LUNCH & AT TEA WITH IDENTICAL MODERATE DIET SHOW A SLIGHT DECREASE IN BODY WEIGHT.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 350
10
20
30
40
50
60
70
80
90
100
6972
83
67
80
84
79
86
80
76 75 75 75
80
70
66
88
78 77
87
68
77
86
93
78
65
73
79
86
64
76
89
76
71
83
68.971.6
82.9
66.7
79.7
83.8
78.8
85.7
79.8
75.974.774.974.8
79.8
70
65.9
87.6
77.376.9
86.4
68
76.9
86
92.8
77.7
64.9
72.7
78.9
85.8
64
75.3
88.9
75.8
70.9
82.8
WEIGHT OF SUBJECT FED GREEN TEA EXTRACT AFTER FIRST 30 DAYS
8887.7
AFTER FIRST OBSERVATION
DAYS OF FEEDING
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 360
10
20
30
40
50
60
70
80
90
100
88
6972
83
67
80
84
79
86
80
76 75 75 75
80
70
66
88
78 77
87
68
77
86
93
78
65
73
79
86
64
76
89
76
71
83
87.7
68.971.6
82.9
66.7
79.7
83.8
78.8
85.7
79.8
75.974.774.974.8
79.8
70
65.9
87.6
77.376.9
86.4
68
76.9
86
92.8
77.7
64.9
72.7
78.9
85.8
64
75.3
88.9
75.8
70.9
82.8
87.5
68.671
82.7
66.3
79.4
83.5
78.5
85.4
79.575.774.274.574.5
79.5
69.6
65.4
87.3
77 76.7
86
67.8
76.5
86
92.4
77.4
64.9
72.5
78.6
85.7
63.7
75
88.6
75.2
70.6
82.7
87
68.270.8
82.5
65.8
7982.8
78
85
7975.273.8 74 74
79.1
69
65.1
87
76.476.2
86
67.5
76
85.8
91.9
76.8
64.5
72
78.1
85.4
63.5
74.8
88.1
75
69.8
82
OBSERVED WEIGHT LOSS OF SUBJECT FED GREEN TEA EXTRACT FOR 90 DAYS
INITIAL WEIGHT
DAY
OF
FEED
ING
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 360
10
20
30
40
50
60
70
80
90
70
7578
68
7476 75
77
69
74 73
62
7577
7375
6567
72
79
7476
65
7173
80
7577 76
79
75
82
63
81
67
80
WEIGHT LOSS OBSERVED OF SUBJECT FED BLACK TEA EXTRACT FOR 90 DAYS
INITIAL WEIGHT
DAYS
OF
FEED
ING
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CONCLUSIONGREEN TEA IS A NON-FERMENTED TEA & CONTAINS POPLYPHENOLS WHICH PROMOTE HEALTH PARTICULARLY CATECHINS THE MOST ABUNDANT OF WICH IS EPIGALLOCATECHIN GALLATE.GREEN TEA CONTAIN MORE CATECHAIN THAN BLACK TEA WHICH MAKES IT MORE POTENT ANTIOXIDANT THAN BLACK TEA.GREEN TEA CONTAINS VITAMIN C,E,K & MINERALS SUCH AS CHROMIMUM,MANGANESE,SELENIUM, ZINC ETC. AND CERTAIN PHYTOCHEMICAL COMPUNDS WHICH INCREASES THE ANTIOXIDANT POTENTIAL OF GREEN TEA.THE CATECHIN COMPONENT OF GREEN TEA INCREASES METABOLIC RATE WHICH HELPS TO BURN CALORIE.CONSUMING GREEN TEA EXTRACT ALONG WITH MODERATE DIET REGULARLY FOR A LONG PERIOD MAY BECOME THE EASIEST & CHEAPEST WAY TO LOSE WEIGHT.
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THANK YOU
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