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3)TEA POLYPHENOL

Tea polyphenol(TP),is a kind of polyphenol mainly contains of tea catechin, contents 8%-20% in the tea leaves,it's an important chemical with health care effect in Tea. Now, Tea polyphenol have been widely applied in foods, cosmetics and medicine industry.
TP showed excellent antioxidative effect on fat and oil-containing foods, better than those of BHA,BHT<VE etc. Furthermore, TP appears synergetic effect with vitamin E, vitamine C and citric acid, and etc. It can also improve the stability of vitamine A, B2 and ß-carotene in foods, inhibit the propagation of bacteria.

TP is used as a food additive, such as chewing gum, toothpaste, deodorizing and eliminating the halitosis, anticaries. It can prevent body's lipid from oxidization. Moreover,TP can stabilize the food color. TP is the health-care products. So far, some new products (such as oral liquid, capsule) had been sold in market.TP shows a good prospect in cosmetics. The flavanols of the tea polyphenol in wave-length 200-300nm appears absorbing peak, TP are called the filter of the ultraviolet rays. TP appears on anti-inflammation and itch.Tea polyphenol supply with active -OH helping to eliminate the excess free radicals