Maltodextrin combined respectively with whey powder, modified starch (エムルスタ-500A, CAPSUL), gum arabic and lactose in a ratio of 4∶1 were used as wall materials, then four kinds of flaxseed oils powder were prepared by spray drying method. The results showed that the oil powder had the best oxidative stability when maltodextrin combined with whey powder was used as wall material through the analysises of the emulsion and oil powder. The antioxidant effects of ascorbic acid palmitate (AP), tocopherol (VE) and tert-butylhydroquinone (TBHQ) in the oil powder system and pure oil system were compared, and the results indicated that TBHQ had the best antioxidant effect. |