Chitosan chemistry 5 chitosan 5 Article 4 Food Packaging 4 controlled study 4 tensile strength 4 chemical structure 3 food packaging 3 thermostability 3 Antioxidants 2 Cellulose 2 Fourier transform infrared spectroscopy 2 Tensile Strength 2 X ray diffraction 2 Young modulus 2 antioxidant 2 aqueous solution 2 chemical parameters 2 concentration (parameter) 2 field emission scanning electron microscopy 2 hydrogen bond 2 physical parameters 2 procedures 2 unclassified drug 2 1,1-diphenyl-2-picrylhydrazyl 1 1,4 butanediol 1 2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid 1 Active film 1 Active food packaging 1