简便制备pH响应性抗菌复合物及纤维素纳米纤维/聚乙烯醇气凝胶用于鲜猪肉的控释包装
Facile preparation of pH-responsive antimicrobial complex and cellulose nanofiber/PVA aerogels as controlled-release packaging for fresh pork.
作者信息
Hou Tianmeng, Wang Feijie, Wang Liqiang
机构信息
Jiangsu Provincial Key Laboratory of Food Advanced Manufacturing Equipment Technology, School of Mechanical Engineering, Jiangnan University, Wuxi, 214122 China.
出版信息
Food Sci Biotechnol. 2023 Dec 22;33(8):1871-1883. doi: 10.1007/s10068-023-01487-8. eCollection 2024 Jun.
UNLABELLED
Intelligent controlled release technologies that rely on environmental changes to control the release rate of antimicrobial agents have attracted attention in the field of food preservation. In this paper, cinnamaldehyde (CN) was grafted onto chitosan (CS) to form a pH-responsive controlled-release complex, CS-CN, via the Schiff base reaction. Then, tempo oxidized cellulose nanofibers (CNF) and PVA were prepared as aerogels loaded with CS-CN with different pore parameters (PCNF@CN). Release experiments showed that acid triggered the release of CN and increased the release from 10.3 to 68.4% with increasing pH. In addition, PCNF@CN showed significant pH-responsive antimicrobial properties against and . Utilizing the water absorption of the aerogel and triggering the release of CN, the shelf life of fresh meat could be delayed for 4 days. This study demonstrated the potential application of PCNF@CN aerogel in functional food preservation packaging.
SUPPLEMENTARY INFORMATION
The online version contains supplementary material available at 10.1007/s10068-023-01487-8.
未标注
依靠环境变化来控制抗菌剂释放速率的智能控释技术在食品保鲜领域引起了关注。本文通过席夫碱反应将肉桂醛（CN）接枝到壳聚糖（CS）上，形成pH响应性控释复合物CS-CN。然后，制备了氧化 TEMPO 纤维素纳米纤维（CNF）和气凝胶负载不同孔隙参数的 CS-CN 的 PVA（PCNF@CN）。释放实验表明，随着pH值升高，酸触发了CN的释放，释放率从10.3%提高到68.4%。此外，PCNF@CN对[具体微生物1]和[具体微生物2]表现出显著的pH响应抗菌性能。利用气凝胶的吸水性并触发CN的释放，鲜肉的保质期可延长4天。本研究证明了PCNF@CN气凝胶在功能性食品保鲜包装中的潜在应用。
补充信息
在线版本包含可在10.1007/s10068-023-01487-8获取的补充材料。
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