Characterization and formation mechanism of lutein pickering emulsion gels stabilized by β-lactoglobulin-gum arabic composite colloidal nanoparticles

Composite β-lactoglobulin (β-lg)–gum arabic (GA) particles with superior properties were fabricated as particulate stabilizers for the delivery of lutein. Uniform β-lg-GA particles (β-lgGAPs) with mean particle size of 244.6 ± 2.7 nm and three-phase contact angle (θo/w) of 90 ± 0.3° were prepared with β-lg to GA mass ratio of 1:2 and pH 4.0. GA molecules were verified to adsorb onto the surface of β-lg nanoparticles, resulting in the formation...