Tea polyphenol basic general knowledge Tea polyphenol , the tea is the polyphenols compound complex which separates from the natural plant tea deputes. It greatly approximately composes about tea dry weight 25%, it includes the caffeine class, flavanone and the flavanone alcohol type, the colored pigment class, the phenolic acid and the depside class and so on four big matter. At present, in the world many countries and the area, specially produce the tea the Asian country, like China, Japan, India and so on, as well as some European and American countries all have carried out the massive Pharmacology research and the experiment to this kind of polyphenols compound complex. Indicated in the massive research that, Tea polyphenol has the many kinds of health care function and the pharmacology effect, like antibacterial, the anti- virus, the antitoxin, guard against the cancer, the anti- cancer, the anti- sudden change, falls the blood fats, falls the blood sugar, prevented the arteriosclerosis and the thrombus form, protects the liver, anti- is senile, the anti- dental caries, the anti- allergy and so on, in addition regarding the immunity system disease, specially the AIDS also has the good prevention and the treatment effect. Thus it can be seen, Tea polyphenol took one kind of resources rich natural medicine has the extremely broad prospect. Anti- oxidation The person in the normal vital activity, in vivo can but unceasingly produce the harmful free radical because of the metabolism (free radical), the free radical nature is lively, has the greatly strengthened oxidized ability, may induce in vivo unsaturated fatty acid the oxidation, produces the peroxidation lipin (lipid peroxidn LPO). LPO unceasingly produces in vivo with the accumulation, can weaken and destroy the biomembrane the normal function, affects the active material the normal metabolism, presses to send the hepatitis, the cancer, is senile and the cardiovascular and so on many aspects illness. Therefore in elimination organism harmful free radical, regarding guaranteed people's health has the extremely vital significance. Tea polyphenol withdraws which from the tea is a kind includes the polyphenol hydroxyl the chemical substance, is extremely easily oxidized into the quinone type to provide proton H +, therefore has the remarkable anti- oxidized characteristic. Is precisely as a result of tea polyphenol this kind strong for the hydrogen ability, enables its obviously to eliminate in vivo the harmful free radical. Some experimental proofs, in stimulate the person polymorphonuclear white blood cell system (PMIV) center, Tea polyphenol (OFR) has the very intense scavenging action to the active oxygen free radical, moreover its elimination ability greatly has also surpassed present known antioxidant VE and VC. Some concrete research indicated that, the tea polyphenol anti- oxygen ability is VE 18 times, is VC 3 ~ 10 times [ 17 ]. Using the Tea polyphenol this kind of strong oxidized ability, eliminates the free radical in the organism, blocks the N- nitroso group compound the production, the suppression fat oxygen gathers the enzyme activeness and the lipin peroxidation function [ 18 ], causes its to guard against the cancer, the anti- cancer, the anti- sudden change, anti- is senile, the preventing and controlling cardiovascular disease, the treatment hepatitis and so on many aspects manifests the superior treatment effect. US'S person and so on Katiyar Santosh.K in to green tea's research in for son caffeine (EC) and its derivative (ECDS) the anti- oxygen intensity has provided the direct basis, and promulgates the green tea regarding the cancer, specially the skin cancer has the good treatment function [ 19 ]. Japan's Osawa.T and so on the research indicated that, in the son caffeine and the tea flavine which withdraws to in the green tea and the black tea have the intense suppression lipin peroxidation and DNA because of oxidizes the function which destroys [ 20 ], in addition, but also can transfer and activate in vivo the endogene anti- oxidation system, enhances SOD and so on enzyme class activeness, urges the blood plasma LPO content to drop, achieves the protection organism the function [ 21 ]. Tea polyphenol in damps the oxygen manufacture free radical, the suppression because in vivo organization the free radical metabolism balance disorder is the result of peroxidation lipin harm function at the same time, the anti- oxidizing constituent also can prevent and suppress the poisoned cell and the intercellular space infection function. Therefore also has protects the liver normal metabolism and the disintoxicating function [ 22 ].

 


 

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