... (OPC), pycnogenol, leukocyanidin, leucoanthocyanin and condensed tannins) is a class of flavanols. Proanthocyanidins are essentially polymer chains of flavonoids ... ), and proanthocyanidins (r = 0.87, P < 0.05).In white wines, a significant correlation was found between the trimeric proanthocyanidin ... and peroxyl radical scavenging values (r = 0.86, P < 0.10).A moderate drink (1 drink per day, about 140 ...