Procyanidin A2

Procyanidin A2 is a A type proanthocyanidin. Procyanidin A2 is a A type proanthocyanidin. It is found in avocado, chestnut, cranberry juice concentrate, lychee fruit pericarb, peanut skins, Cinchona cortex, cinnamon cortex, Urvillea ulmaceae, and Ecdysanthera utilis. Procyanidin B2 can be converted into procyanidin A2 by radical oxidation using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals under neutral conditions.