s co-stabilized by zein-propylene glycol alginate composite nanoparticles (size: 416.4 8.5 nm) and rhamnolipid, quillaja saponin and tea saponin (0.011.00%, w/v). The results showed that different types and concentrations of natural small molecular surfactants (NSMS) had an important influence on the stability, microstructure and rheological properties of the Pickering emulsions. The surfactants were able to not only diffuse into the interfacial gaps but also adsorb onto the surface of particle