Figure 3. RP-HPLC chromatogram (280 nm) of the products of Fra.II thiolysis. Peaks: 1, (+)-catechin; 2, (+)-catechin derivative; 3, procyanidin A2

From

DPPH Radical Scavenging Activity and Polyphenols in the Pods of 3 Common Beans

Zhaohong Ci, Chengyu Jiang, Chigen Tsukamoto, Michiyuki Kojima

Journal of Food and Nutrition Research. 2017, 5(12), 900-907 doi:10.12691/jfnr-5-12-4