Interrelationship between the zeta potential and viscoelastic properties in coacervates complexes

► Biopolymers ratio impacts the physicochemical and rheological properties of complexes. ► Biopolymers ratio and pH of the dispersion alter the charge density of the complexes. ► The charge density in complex coacervate phases shifts the rheological profile. ► Gum arabic:chitosan complex coacervate phases form a viscous liquid-like dispersion.