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Antioxidative capacity of YGW. (a) DPPH assay using various concentrations of YGW treatment for 30 minutes. L-ascorbic acid is a standard antioxidative compound. (b) The DPPH free radical scavenging activity of YGW significantly increased with their concentration (n = 3 for each group; values are presented as mean ± SEM, ∗∗P < 0.01, ∗P < 0.05, one-way ANOVA followed by the Student–Newman–Keuls multiple comparison post hoc test).
