Abstract: The antioxidant activities of Fructus Schisandrae, sesame, corn and bean bee pollen oils were evaluated by DPPH radical scavenging method, ABTS radical scavenging method and phosphomolybdenum method using α-tocopherol as the positive control. Results indicated that four kinds of bee pollen oil had strong scavenging effect on ABTS and DPPH free radicals with IC50 values of 0.029－0.708 mg/mL and 0.059－2.203 mg/mL, respectively. Moreover, their scavenging activities against DPPH and ABTS free radicals revealed a significant difference (P ＜ 0.01). Through determining by phosphomolybdenum method, the strongest antioxidant activity was Fructus Schisandrae bee pollen oil, followed by corn, bean and sesame bee pollen oils. Moreover, Fructus Schisandrae bee pollen oil revealed antioxidant activity equivalent to that of α-tocopherol.

Key words: bee pollen oil, antioxidant activity, 2,2'-azinobis-(3-ethylbenzthiazoline-6-sulphonate) (ABTS+), 1,1-diphenyl-2-picrylhydrazyl radical or 2,2-diphenyl-1-(2,4,6-trinitrophenyl) hydrazyl (DPPH), phosphomolybdenum method