Antarctic krill oil is rich in polyunsaturated fatty acids,but its strong odor,susceptibility to oxidation,and poor biocompatibility limit its application in the food industry . Therefore,this study utilized Zein-sodium alginate (SA ) binary nanoparticles as stabilizers to prepare Pickering emulsions with Antarctic krill oil and investigated their stability .The results indicated that a Zein-to-SA mass ratio of 5:1 was the optimal formulation with good pH stability .SA adsorbed onto the surface of Zein through hydrogen bonding and electrostatic interactions,forming core-shell structured nanoparticles .As the oil phase volume fraction (10％ to 70％) increased,the particle size of the Pickering emulsion decreased gradually,the ζ potential increased,indicating improved stability,and Zein-SA exhibited better stability compared to Zein and SA alone .This study not only provided a possibility for the preparation of a novel effective active substance delivery system but also expanded the application of Antarctic krill oil in food products .
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