Adsorption and inhibition of lipid oxidation of curcumin embeded egg ovalbumin/ sodium carboxymethylcellulose nanoparticles at the oil-in water interface

Abstract

In this study, the adsorption and inhibition of lipid oxidation propertises of curcumin embeded ovalbumin (OVA)/sodium carboxymethylcellulose (CMC) were investigated. The results demonstrated that the adsorption of curcumin and OVA/CMC particles at the oil-water interface might form a dual protection. The larger emulsion droplets were formed at an OVA/CMC ratio of 1:2 (pH 4.4) due to bridging flocculation. In the other two ratios (1:1, 2:1), the emulsions showed good stability after 32 days of storage. At the ratios of 1:2, 1:1, and 2:1, the oxidation rate of the oil in the emulsion stabilized by OVA/CMC and OVA/CMC-Cur particles reduced by 16.2% and 37.9%, 4.9% and 38.9%, and 8.8% and 35.8%, respectively, than the pure oil. At the ratios of 1:1 and 2:1, the emulsion stabilized by the OVA/CMC-Cur particles demonstrated excellent antioxidant resistance and storage stability, particularly at the ratio of 1:1.