Gum tragacanth dispersions of various concentrations were prepared by adding the known amounts of powdered GT in deion-ized water against gentle stirring at 40◦C for 2 h. The various concentrations of Casein (CAS) solutions were prepared by dis-solving known amounts of casein in minimal volume of 0.1 Nsodium hydroxide and made up to 100 ml with deionized waterand allowed to stir at 40◦C for 2 h. Biopolymers solutions werekept overnight at 4◦C to ensure the complete hydration of thebiomacromolecules