SEARCH Articles Figures Tables ABTS radical cation scavenging as a function ofpH by either procyanidin or by procyanidin-gelatin complexes. Procyanidin with or without 0.09 nmol gelatin was mixed with 55 nmol of the colored radical cation and the loss of color was immediately determined. Bars show the average of 3 determinations standard deviations are indicated. [Publishers Imprint]