biologically active supplement, phenolic compound, oligomeric and polymeric proantocyanidins, biological activity.

Phenolic components - Oligomeric and polymeric proantocyanidins of biologically active food supplement, which is made from "rkatsiteli" grape, have been studied. The big amount of proantocyanidins have been revealed. Oligomeric and polymeric proantocyanidins localized with high concentration, determine the high biological activity of the biologically active supplement and provide its curative - prophylactic and preventing functional significance.