Rheological properties of starch (Gelatinized in Microwave)/chitosan blends

Abstract: The rheological properties of starch (Gelatinized in Microwave)/ chitosan blends were investigated at different concentrations of starch, chitosan and glycerol. The starch solution with concentration 3% seems to be Newtonian, as the concentration of starch increased the solutions showed shear-thinning (pseudoplastic) behavior at all temperatures and chitosan concentrations studied. The flow behavior (Shear stress against shear rate) of the solutions was well described using the power law model.The temperature effect on apparent viscosity followed an Arrhenius-type relationship. The results showed that at concentrations higher than 0.3% chitosan, the temperature effect on the solution increase. The effect of concentration of starch and chitosan on the apparent viscosity of starch/chitosan blends was also studied.
Publication year 2009
Organization Name
serial title مجلة جامعة القاهرة للعلوم البيئية
Author(s) from ARC
Publication Type Journal