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Specifications
green tea catechins
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Green Tea Catechins
Green Tea Extract
CAS NO: 989-51-5
Specification: Tea polyphenol 40%-98%
EGCG: 30%-98%
Catechins: 20%-80%
Active Ingredient: Polyphenols & Catechins
Molecular Weight: 458.37
Test methed: UV&HPLC
Quality data
|
Identification |
Standardization |
|
Aspect |
Brown yellow fine powder |
|
Odor & taste |
Characteristic |
|
Particle size |
NLT 95% through 80 meshes |
|
Loss on drying |
5.0% max. |
|
Sulphated ash |
5.0% max. |
|
Heavy metals |
20ppm max. |
|
Pb |
2ppm |
|
As |
2ppm |
Microbiological data
|
Total aerobic count |
Not more than 1000cfu/gram |
|
Yeast & Mold |
Not more than 100cfu/gram |
|
E. Coli |
Absence in 10g |
|
Salmonella |
Absence in 10g |
Addition data
|
Sterilization |
High temperature and press |
|
Storage |
Store in a cool dry place, avoiding sunlight directly |
|
Shelf life |
Two years when sealed well |
|
Packaging |
Food grade multiplayer polyethylene bags, 25kg in one type cardboard drum |
Green tea extract, like many herbs, is standardized in the production phase to guarantee that a certain percentage of the active ingredients remain present in the final capsulized form. The active ingredients in green tea extract are polyphenols in the form of flavonoids like catechins and epigallocatechin gallate (EGCG). Polyphenols, flavonoids, catechins and EGCG are powerful antioxidants that appear to interfere with and reduce the spread of certain types of cancer cells. The antioxidant activity of EGCG in green tea extract is purportedly up to 100 times more powerful than that of vitamin C or E.
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