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The antioxidant activity of compounds from the EA fraction, C1 = dihydroquercetin, C2 = acacetin, C3 = quercetin, C4 = isoquercitin, C5 = dehydrodicatechin A, C6 = trans-ferulic acid, and C7 = caffeic acid. (a) The IC50 value of DPPH radical scavenging assay, (b) The IC50 value of ABST radical scavenging assay, and (c) ferric-ion reducing antioxidant power (FRAP) assay. ## p < 0.01 compared with the positive control of BHT.
