Impact of deamidation on the physicochemical properties and air-water interfacial behaviour of gliadin nanoparticles

Gliadin due to its low water solubility is excellently suited make biopolymeric nanoparticles through liquid antisolvent precipitation. These gliadin (GNPs) can be utilized populate and stabilize interfaces. Gliadin, by nature a protein that carries charge, altered deamidation. Deamidation effectively alters the physicochemical properties of decreasing protein’s isoelectric point (IEP). The objective this study explore effect different degrees deamidation on nanoparticle (interfacial) characteristics. Besides altering physical stability GNP suspensions, did alter functionality GNPs as interfacial agents. behaviour at air-water interface substantially impacted pH. Particles made with untreated deamidated exhibited greater tendency adsorb form strong viscoelastic films better foam structures closer their IEP. combination SEM, confocal Raman microscopy drop tensiometry provides unique insights in dominant interactions film. This crucial into potential tailor for specific food applications.