Oxidative stability of peanut oil in O/W emulsions
O/W type peanut oil emulsion liquid department for test model,the oxidition kinetics of the emulsifier stabilized oil emulsion was studied.The results indicated that oxidative stability of peanut oil in O/W emulsion was critically affected by the emulsifier type and pH of the emulsions,SDS-stabilized emusions had the highest lipid oxidition rate compared with those stabilized by CTAB and Tween 20 at pH 4.0.The effect of pH on the oxidition of emusions stabilized by Tween 20 was not significant.While CTABstabilized emusions,with the increasing of pH the oxidition of the O/W emusion increased.The addition of EDTA to Tween 20-stabilized emusions greatly suppressed the lipid oxidation.The results showed with the increasing of the metalion chelator EDTA concentration the oxidition of emusions decreased.Droplet size distribution was influenced by emulsifier content and showed with the decreasing of dimater the oxidition of emusions increased.