Basic knowledge of tea polyphenols

Tea polyphenol (trade name: Bao-Long Tea), Bao-Long Tea is the tea plant from the natural separation and purification of polyphenols from the complex. It leaves about 25% of dry weight around, which include catechins, flavonoids and flavonoid alcohols, type proanthocyanidins, phenolic acids and phenolic acids, such as reduction of the four substances. At present, many of the world's countries and regions, in particular Asian countries tea production, such as China, Japan, India, as well as some European and American countries are polyphenolic compounds of this complex to carry out a great deal of pharmacological research and testing . In a large number of studies show that, Tea polyphenol has a wide range of health functions and pharmacological effects, such as antibacterial, antiviral, anti-toxins, anti-cancer, anti-cancer, anti-mutation, reducing blood fat, lowering blood sugar, prevent arteriosclerosis and thrombosis, the protection of the liver , anti-aging, anti-caries, anti-allergy, etc., in addition to immune system diseases, especially AIDS, also has a good efficacy of prevention and treatment. It can be seen, Tea polyphenol rich resources as a natural medicine has a very broad prospects.


Antioxidant

In normal life activities, in vivo metabolism will continue to generate harmful free radicals (free radical), the nature of free radicals and lively, with strong oxidation ability, the body can induce the oxidation of unsaturated fatty acids, resulting in lipid peroxidation quality (lipid peroxidn LPO). LPO in the body continue to produce and accumulate, it will weaken and undermine the normal functioning of biological membranes and affect the normal metabolism of active substances, priming of hepatitis, cancer, aging and cardiovascular disease and many other aspects. So to clear the body of harmful free radicals, to ensure the health of people is extremely important.

Extracted from the tea in the Tea polyphenol is a polyphenol containing hydroxy category of chemical substances, easily oxidized quinones provided as a proton H +, it has significant anti-oxidation characteristics. It is because tea polyphenols such strong capacity for hydrogen so that it can obviously remove the body of harmful free radicals. There experiments showed that people in stimulating PMN system (PMIV) in, Tea polyphenol on the activity of oxygen free radicals (OFR) has a strong scavenging effect, and its ability to remove significantly more than the current known antioxidant VE and VC. Specific studies have shown that the antioxidant capacity of tea polyphenols is 18 times the VE is the VC of the 3 ~ 10 times [17]. Tea polyphenol use of such strong oxidizing ability of scavenging free radicals in the body, blocking N-nitroso compounds formation, inhibition of lipoxygenase activity and lipid peroxidation [18], its anti-cancer , anti-cancer, anti-mutagenic, anti-aging, prevention and treatment of cardiovascular diseases, hepatitis and many other aspects of the treatment reflects the superior efficacy of the treatment.
Katiyar Santosh.K the United States and others in the study of green tea catechin for the (EC) and its derivatives (ECDS) antioxidant strength to provide a direct basis, and to reveal the green tea for cancer, especially skin cancer has a good the therapeutic effect [19]. Osawa.T such as Japan, studies have shown that green tea and black tea in the extract from tea catechins and theaflavins have a strong inhibition of lipid peroxidation and DNA damage due to oxidation of the features have been [20], in addition, also able to mobilize and activate the body's endogenous antioxidant system to enhance the activity of SOD and other enzymes to decreased plasma LPO, to protect the body's functions [21].

Tea polyphenol in inhibiting oxygen free radicals, inhibiting the body tissues due to metabolic disorders caused by free radical lipid peroxidation damage of the functions of the antioxidant components can also prevent and inhibit cell precursor cells and the role of the infection. So also has the protection of liver function and normal metabolism and detoxification [22].