5TOMITA M,IRWIN K I,XIE Z J,et al.Tea pigments inhibitthe production of type 1(TH1)and type 2(TH2)helper Tcell cytokines in CD4+T cells[J].Phytother Res,2002,16(1):36-42.
6LI Y,SHIBAHARA A,MATSUO Y,et al.Reaction of theblack tea pigment theaflavin during enzymatic oxidation oftea catechins[J].J Nat Pro,2010,73(1):33-39.
7TANAKA T,MATSUO Y,KOUNO I.A novel black teapigment and two new oxidation products of epigallocatechin-3-O-gallate[J].J Agr Food Chem,2005,53(19):7571-7578.
8CHEN D,WAN S B,YANG H,et al.EGCG,green teapolyphenols and their synthetic analogs and prodrugs forhuman cancer prevention and treatment[J].Adv ClinChem,2011,53:155-177.
9TANAKA T.Production and degradation mechanism oftheacitrin C,a black tea pigment derived fromepigallocatechin-3-O-gallate via a bicyclo3.2.1octane-typeintermediate[J].Tetrahedron,2011,67(11):2051-2059.
10WOLFRAM S.Effects of green tea and EGCG on cardi-ovascular and metabolic health[J].J Am College Nutri,2007,26(4):373S-388S.