It is a kind of natural compound extracted from the green tea, with 30 polyphenois variety. According to its chemical structure, it is classified into catechins, flavone and flavonol, anthocyanidin, phenolic acid and condensed phenolic acid. The content of catechins is the highest, reaching 60-80% of tea polyphenols. Catechins is also divided into many variety.
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.
1. Application of tea polyphenols in aspects such as food and beverage
2. Application of tea polyphenols in aspects such as medication and health care
3. Application of tea polyphenols in chemical industry commodities
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