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DPPH, O2−, H2O2, and FRAP radical scavenging capacity of COS and BHA at 0.01–0.06 g/L. Values expressed as mean ± standard error of three parallel experiments. (A) DPPH scavenging capacity; (B) O2− scavenging capacity; (C) H2O2 scavenging capacity; (D) FRAP scavenging capacity.
