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3-<?-Galloyl-epigallocatechin-

O-Galloyl- epigallocatechin-(4P—>8)- epigallocatechin-3-O-gallate ester (condensed tannin) Camellia sinensis (Theacaeae), Rhodiola sacra (Crassulaceae) PEP (440 nM) [115]... [Pg.588]

Galloyl-epigallocatechin-(4(3 — 8)-epigallocatechin-3- 0-gallate ester (condensed tannin)... [Pg.544]

The initial oxidation of the flavanol components of fresh leaf to quinone structures through the mediation of tea polyphenol oxidase is the essential driving force in the production of black tea. While each of the catechins is oxidizable by this route, epigallocatechin and its galloyl ester are preferentially oxidized.68 Subsequent reactions of the flavonoid substances are largely nonenzymic. [Pg.61]

It is well known that tea contains catechins besides caffeine. Although catechins are widely distributed in the plant kingdom, the catechin monomers in many plants coexist with larger amounts of dimeric to polymeric proanthocyanidins, which are comprised of catechin units connected by C-C bonds. However, the polyphenol composition of C. sinensis is unique, and mainly comprised of four monomeric catechins—(-)-epicatechin (1), (-)-epigallocatechin (2) and their galloyl esters. [Pg.59]

R = OH, R" = H epigallocatechin R = H, R" = gallic acid galloyl epicatechin (epicatechin-3-O-gallate)... [Pg.149]

See other pages where 3-<?-Galloyl-epigallocatechin- is mentioned: [Pg.574]    [Pg.571]    [Pg.571]    [Pg.571]    [Pg.571]    [Pg.571]    [Pg.574]    [Pg.16]    [Pg.305]    [Pg.574]    [Pg.102]    [Pg.40]    [Pg.471]    [Pg.491]    [Pg.129]    [Pg.137]    [Pg.26]    [Pg.26]    [Pg.62]    [Pg.64]    [Pg.71]    [Pg.72]    [Pg.82]    [Pg.284]    [Pg.292]    [Pg.2256]    [Pg.78]    [Pg.298]    [Pg.54]    [Pg.488]    [Pg.592]    [Pg.991]    [Pg.749]    [Pg.750]    [Pg.155]    [Pg.307]    [Pg.319]    [Pg.8]   
See also in sourсe #XX -- [ Pg.588 ]



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1- 0-galloyl

Epigallocatechin

Epigallocatechins

Galloylation

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