Active packaging 1 Anti-microbial agent 1 Antimicrobial performance 1 Biomolecules 1 Biopolymers 1 Design 1 Edible films 1 Experimental design 1 Extruded films 1 Extrusion 1 Extrusion process 1 Extrusion technology 1 Films 1 Food preservation 1 Food technology 1 Glycerol 1 High energy forming 1 Mixture design 1 Mixture experimental design 1 Mixtures 1 Moisture contents 1 Physical properties 1 Potassium 1 Potassium sorbates 1 Potential applications 1 Reinforcing effects 1 Starch 1 Statistics 1 Strain at break 1 Tapioca starch 1