... discovered in 1936 by Professor Jacques Masquelier and called Vitamin P, although this name did not gain official category status and ... and malvidin compounds (r = 0.75, P < 0.10), and proanthocyanidins (r = 0.87, P < 0.05).In white wines, a significant ... proanthocyanidin fraction and peroxyl radical scavenging values (r = 0.86, P < 0.10).A moderate drink (1 drink per day, about ...