Tea polyphenols

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Tea polyphenols Tea polyphenols is natural compound extracted from tea. It is composed of more than 30 substance containing phenolic group, its chemical structure can be sorted four types: catechin type, flavone and flavonol type, anthocyanidin and procrypsis anthocyanidin type, phenolic acid type; among of them, type catechin is the most occupying 60%~80% of total phenols. Catechin type is composed of D,L-C??EC??EGC??EGCE??GCG??ECG and so on, the first three types are the simple catechin ( free type), the latter three types are the complex catechin (ester type). Catechin compound is apt to show oxidation, polymerization and condensation for containing more phenolic hydroxyl group, which is doomed to have fine ability of anti-oxidation and ability of clearing free radical. Quality Standards Tea Polyhenols Product Physical properties: light-green powder or light yellow soluble in water or alcohol. Stability:stable in PH4-8. easy to oxidize in the conditions such as strong alkali, acid , light ,high temperature and interim metals. Safety evaluation: non-toxicity Storage: keep in shady, dry places with good ventilation condition and avoiding light. Shelf time: two years Any query pls let me know. Email: Sophia(at)international-biz.com Website: www.internationl-biz.com

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Zhongbei Northland Bio-Chem Industry Co., Ltd

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