Effects of extrusion and glycerol content on properties of oxidized and acetylated corn starch-based films

► Films were made from oxidized and acetylated starch and pullulan blends. ► Extrusion and glycerol content significantly influenced the properties of films. ► The tensile strength of the films were much higher than previous reports. ► Oxidized and acetylated corn starch was an excellent material to make film.