Preparation and functional properties of fish gelatin-chitosan blend edible films

► FTIR and DSC analyses were demonstrated the good miscibility of the two polymers. ► Blend films containing around 60 wt.% gelatin displayed excellent mechanical and physical properties. ► Water vapour permeability and water solubility of films decreased as the chitosan content increased. ► Blending gelatin and chitosan may be a method for improving the physical properties of films.