E Warsikia, IOP Conf. Ser.: Earth Environ. Sci. 141 012036
Chitosan was used for active packaging of ethylene absorber that can change the head space of food packaging to extend the shelf life.
The purpose of this study was to develop active packaging from chitosan and KMnO4 and apply the active film to package tomatoes.
Active film was prepared by mixing chitosan 6 g, 140 mL of acetic acid 1%, 60mL of aquadest, 2mL sorbitol, and KMnO4 with concentration of 3 g, 5 g, and 7 g. After 5 days of storage, the film used to wrap the tomatoes was sweated. The best formulation to absorb the ethylene was made from 7 g of KMnO4 since it could inhibit tomatoes from shortly ripening compared to other formulations.
The fruits were packed at room temperature had a high hardness as much as 17,79 mm/50mg/5s compared to the control of 3,47 mm/50mg/5s, while at the refrigerator, the tomato had lower hardness value of the 2,72 mm/50mg/5s compared to the control of 4,29 mm/50mg/5s.
Addition of KMnO4 on the film could maintain the value Hue either for all treated sample and control in the range of the yellow to red.
Application of chitosan as biomaterial for active packaging of ethylene absorber
Department of Agroindustrial Technology, Faculty of Agricultural Engineering and Technology, Bogor Agricultural University, Bogor
IOP Conf. Ser.: Earth Environ. Sci. 141 012036
Picture, KMnO4 by Cosmos Online