Development of cellulose-based self-healing hydrogel smart packaging for fish preservation and freshness indication

被引:6
|
作者
Wang, Suyang [1 ]
Ma, Yan [1 ]
Wang, Feijie [1 ]
Lu, Chenhui [2 ]
Liu, Yichi [1 ]
Zhang, Shenzhuo [1 ]
Ma, Shufeng [2 ]
Wang, Liqiang [1 ]
机构
[1] Jiangnan Univ, Sch Mech Engn, Jiangsu Prov Key Lab Food Adv Mfg Equipment Techno, Wuxi 214122, Peoples R China
[2] Jiangnan Univ, Sch Food Sci & Technol, State Key Lab Food Sci & Resources, Wuxi 214122, Peoples R China
关键词
ZIF-8; Nanocellulose; Polyvinyl alcohol; Self-healing; Smart packaging; POLY(VINYL ALCOHOL); FOOD; CURCUMIN; FILLETS; FABRICATION; MEMBRANES; MATRICES; BORAX;
D O I
10.1016/j.carbpol.2024.122806
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Biomass-based composite packaging materials loaded with functional fillers have good application prospects in food preservation and freshness detection. Self-healing hydrogel packaging films based on nanocellulose (CNF), polyvinyl alcohol (PVA), and ZIF-8 embedded with curcumin (Cur@ZIF-8) were developed in this study. The synthesis of Cur@ZIF-8 was demonstrated by characterization experiments. The addition of Cur@ZIF-8 enhanced the water vapor barrier property, tensile strength, and elongation at break of hydrogel films by 49.2 %, 193.5 %, and 172.9 %, respectively, and endowed them with excellent antimicrobial, antioxidant, and ammonia sensitivity. In packaging tests with fish, hydrogel films loaded with Cur@ZIF-8 inhibited spoilage and microbial growth to extend the shelf life of fish to 9 days, and the color change of hydrogel films allowed for real-time monitoring of fish freshness. This study provided a new solution for smart packaging materials with dual functions of preservation and freshness indication.
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页数:14
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