Black Tea Extract TheaflavinsSpecificationsycgc_int01atyccreatedoccom 8602788070816 8618062666877

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Black Tea Extract TheaflavinsSpecifications Product:Black Tea P.E. Active Ingredients:Theaflavins,Polyphenols Spec:HPLC 15%-60% (Theaflavins),UV 20%-98% (Tea Polyphenols) Latin Name Camellia sinensis O. Ktze. Family Theaceae Part of the Plant Used Leaves Active Ingredients Theaflavin (TF) Theaflavin-3-gallate(TF-3-G) Theaflavin-3’-gallate(TF-3’-G) Theaflavin-3, 3’-gallate (TFDG) Product Specification 20% ~ 80% Theaflavins Applications 1)Be widely used as anti-oxidant and functional 2)The multifunctional green food additives & raw material of health food 3) Intermediate of the medicine 4) Natural herbal ingredient of TCM It is generally accepted that during the fermentation stage of black tea manufacture, flavan-3-ols (also known as catechins) of green tea leaf are oxidized enzymically and chemically to give rise to theaflavins and thearubigins (Roberts 1962; Sanderson 1972). Theaflavins possess a benzotropolone skeleton that is formed from co-oxidation of appropriate pairs of catechins, one having a vic-trihydroxyl structure, and the other having an ortho-dihydroxyl group. Several major theaflavins and related compounds have been structurally characterized. Theaflavin (TF), theaflavin-3-gallate(TF-3-G), theaflavin-3-gallate(TF-3-G), theaflavin-3, 3-gallate (TFDG) and epitheaflavic acid are examples (Colier et al 1973).

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