Evaluation of the antioxidant capacities of four standard anthocyanins by
ORAC assay. Data are expressed as mean values (n = 3). Identical superscript letters
denote ORACs that are not significantly different at P < 0.05. Pt3G: Petunidin-3-
glucoside; P3G: peonidin-3-glucoside; C3G: cyanidin-3-glucoside.