CatechinTeaCamellia sinensisPolyphenolsFlavonoidsPhenolsProanthocyanidinsAntioxidantsBiflavonoidsCacaoMolecular StructureGallic AcidPlant ExtractsQuercetinCombretumAnticarcinogenic AgentsCamelliaPicratesAnthocyaninsPaulliniaFree Radical ScavengersTanninsChromatography, High Pressure LiquidFlavonolsSpectrometry, Mass, Fast Atom BombardmentLitchiTheobromineKaempferolsCrataegusDose-Response Relationship, DrugGrape Seed Extract