期刊
CARBOHYDRATE POLYMERS
卷 277, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2021.118876
关键词
Chitosan; Extraction; Modification; Active packaging; Intelligent packaging
资金
- higher education ministry of Malaysia, fundamental research grant scheme [FRGS/1/2020/STG05/USM/01/3]
- Universiti Sains Malaysia [304PTEKIND/6315423]
Chitosan, a renewable material with good biodegradability and natural availability, shows great potential as a food packaging material to extend the shelf-life and maintain the qualities of food commodities. Chitosan-reinforced composites also exhibit antimicrobial, antioxidant, and antifungal activities, making them versatile for various applications.
Current environmental concerns fostered a strong interest in extracting polymers from renewable feedstocks. Chitosan, a second most abundant polysaccharide after cellulose, may prove to be a promising green material owing to its renewability, inherent biodegradablity, natural availability, non-toxicity, and ease of modification. This review is intended to comprehensively overview the recent developments on the isolation of chitosan from chitin, its modification and applications as a reinforcing candidate for food packaging materials, emphasizing the scientific underpinnings arising from its physicochemical properties, antimicrobial, antioxidant, and antifungal activities. We review various chitosan-reinforced composites reported in the literature and comprehensively present intriguing mechanical and other functional properties. We highlight the contribution of these mechanically robust and responsive materials to extend the shelf-life and maintain the qualities of a wide range of food commodities. Finally, we assess critical challenges and highlight future opportunities towards understanding the versatile applications of chitosan nanocomposites.
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