Application of chitosan as biomaterial for active packaging of ethylene absorber

2nd International Conference on Biomass: Toward Sustainable Biomass Utilization for Industrial and Energy Applications

生物科学;工业技术;能源学

Warsiki, E.^1

Department of Agroindustrial Technology, Faculty of Agricultural Engineering and Technology, Bogor Agricultural University, Bogor FATETA Building, IPB Darmaga Campus, Bogor

16680, Indonesia^1

关键词: Active films;    Active packaging;    Ethylene absorbers;    Food packaging;    Headspaces;    High hardness;    Lower hardness;    tomatoes;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/141/1/012036/pdf
DOI  :  10.1088/1755-1315/141/1/012036

来源: IOP

【 摘 要 】

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%, 60 mL of aquadest, 2 mL sorbitol, and KMnO4with 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.