Figure 1. Polyphenols in the pods of French beans measured by an LH-20 column with successive elutions. Fra.I: ethanol fraction, 1-20, Fra.II: methanol fraction, 21-40, and Fra.III: 60% acetone fraction, 41-60

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