Impact of pH, ionic strength and chitosan charge density on chitosan/casein complexation and phase behavior

The interaction between polysaccharides and proteins has attracted great interests and the phase behavior and colloidal properties of complexes between chitosan, a positively charged polysaccharide, and proteins still need careful investigation. Here, we use chitosan/casein as model system and monitor their complex size, zeta-potential, light scattering intensity and phase behavior as functions of chitosan deacetylation degree, pH and ionic...