Pullulan-sodium alginate based edible films: Rheological properties of film forming solutions

► Newtonian flow behavior was observed for pure pullulan solution at the concentration of 4%. However, increasing the sodium alginate content led to non-Newtonian behaviors. ► Storage modulus and loss modulus significantly increased, as sodium alginate content increased from 40% to 60%. ► We use generalized Maxwell model to get discrete relaxation spectra of pure sodium alginate and pullulan-sodium alginate solutions.