Our country use tea already had up to now 4000 the history. Latter-day since had deepened greatly to the understanding of tea, had deep knowledge to the corporeal essence of tea function sex, to tea function sex use already expanded human life and the numerous field that produce a course, it is apparently paradigmatic that tea processes the application in course of study in stock raising and feed. As human material standard of living rise, all sorts of antibiotic, grow the poisonous side-effect of hormone causes attention increasingly, from natural content antibiotic is searched in the plant especially, grow the substitute of hormone suffers fully fix eyes upon. None strange, tea serves as a kind cheap the individual plant with avirulent and easy, harmless, apparent effect can be introduced by increasing ground in stock raising and feed treatment industry.
The bases of tea
The chemical composition of a few kinds of main tea and its Xian Xie sees next tables.
The functional sex of tea is the result that collaboration of all sorts of composition put together in tea use, those who have dominant effect is the much phenol in tea kind reach its oxidation production, and the synergism of all sorts of material also is important. Tea is much more phenolic kind of catechu element that includes about 70 ％ namely Huang Wan is mellow kind, others includes yellow ketone, phenolic acid kind, cyanine element, they have very strong reproducibility. Additionally tea saponin and theine are in the biology active of tea also having certain effect, and protein, amino acid and saccharide are basic nutrition material. A few kinds of elements already discovered in tea, include C, h, o, n, ca, k, a large number of elements such as Na reach Cu, fe, mn, more than kinds of 10 beneficial microelement such as Zn, also contain Pb at the same time, cr, hg, cd, the harmful element such as As, the element that still action of a few physiology is not made clear very is like Ag.
Green tea, black tea, oolong can be made after bright tea passes treatment (green tea) , white tea, black tea and yellow tea. The result out green tea that great majority studies about tea physiology active and oolong, but the functional effect that already data makes clear black tea is very powerful also, because,this is phenolic kind red element of Huang Su of oxidation child tea, tea still is had stronger fight oxidation active. By next watches visible black tea and oolong contain rich tea red element of yellow element and tea, their fighting oxidation active is the important basis that forms black tea and oolong biology active.
The main live thing of tea is active
Tea has a few more the following biology is active: Fight oxidation, fight mutation, curb bacterium, fall blood pressure, fall hematic fat, fall blood sugar, prevent dental caries, immunity, diuresis, antiphlogistic; Physiology adjustment.
The action mechanism of active of tea living things is: Cleared freedom base. The exploration of institute of Zhejiang university tea via 10 one's remaining years, the system explained tea is much more phenolic material has cleared and active oxygen freedom radical, fat is free base with aromatic hydrocarbon the ability of freedom radical, all sorts of much more phenolic constituent have synergism. With biology macromolecule DNA, enzymatic interaction. The scientist of Zhejiang university, Beijing University and the country such as flower beauty proves from different point of view tea much phenol can promote the rehabilitate that DNA injures severally, and at the same time can the synthesis that block breaks tumor cell DNA. Direct and compensatory nutriment, produce physiology adjustment effect to airframe. C of E of vitamin of the antioxidant inside second birth body, vitamin, fight oxidation in coordination. Tea much phenol can promote GSH reductive enzymatic, the activation with enzymatic SOD, produce synergism with these composition thereby.
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