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Effects of pumpkin seed extract (12.5, 37.5, 63.5, 100, and 125 mg/mL) on DPPH and ABTS radical-scavenging activities. (A) DPPH radical-scavenging activity (%). (B) ABTS radical-scavenging activity (%). Data are expressed as the mean ± SD (**** p < 0.0001 vs. 0 mg/mL).
