Antioxidant interaction of α-tocopherol, γ-oryzanol and phytosterol in rice bran oil

•Concentration of binary mixtures affected the total antioxidant capacity.•Ratio of binary mixtures affected the type or degree of antioxidant interaction.•Inhibition of phytosterol on α-tocopherol regeneration leads to antagonism.•Synergism of γ-oryzanol and phytosterol is related to the hydrogen bond.