Properties of wheat starch film-forming dispersions and films as affected by chitosan addition

► The properties of film forming dispersions and films depend of the quantity of chitosan incorporated. ► Increasing chitosan ratio will increase gloss, thick, resistance and extensibility of the wheat starch films. ► We study that increasing chitosan ratio seems to inhibit starch retrogradation. ► We report a notable antimicrobial effect in the blend films when the proportion of chitosan was 50%. ► The obtaining of edible antibacterial films with thermoplastic properties is proposed.