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The in vitro reactive oxygen species scavenging activity of navel orange (Citrus sinensis Osbeck) flavonoids was studied by determining the autoxidation rate of pyrogallol after different concentration of navel oranges flavonoids was added.Vitamin C and 50% alcohol was used as compare. The results revealed no significant difference(P>0.05) between the antioxidation of 1 mg/mL vitamin C and 3.01 mg/mL navel oranges flavonoids; however, the antioxidation of navel oranges flavonoids was very significantly different (P<0.01) from that of 50% ethanol and CK, indicating that navel oranges flavonoids had strong in vitro ability in scavenging reactive oxygen species.
The in vitro reactive oxygen species scavenging activity of navel orange (Citrus sinensis Osbeck) flavonoids was studied by determining the autoxidation rate of pyrogallol after different concentration of navel oranges flavonoids was added. Vitamin C and 50% alcohol was used as compare. The results revealed no significant difference (P> 0.05) between the antioxidation of 1 mg / mL vitamin C and 3.01 mg / mL navel oranges flavonoids; however, the antioxidation of navel oranges flavonoids was very significantly different and CK, indicating that navel oranges flavonoids had strong in vitro ability in scavenging reactive oxygen species.