Author/Authors :
Kondo، نويسنده , , Kazunari and Kurihara، نويسنده , , Masaaki and Fukuhara، نويسنده , , Kiyoshi and Tanaka، نويسنده , , Takashi and Suzuki، نويسنده , , Takashi and Miyata، نويسنده , , Naoki and Toyoda، نويسنده , , Masatake، نويسنده ,
Abstract :
Procyanidin B-1 and B-2 were converted into A-1 and A-2 by radical oxidation using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals under neutral conditions, respectively. Transformation of procyanidin B-type into A-type certainly shows abstraction of the hydrogen atom at the C-2 position during radical oxidation.
Keywords :
Polyphenols , Bond dissociation enthalpy , antioxidant , radicals
