Preparation of an intelligent film based on chitosan/oxidized chitin nanocrystals incorporating black rice bran anthocyanins for seafood spoilage monitoring
Preparation of an intelligent film based on chitosan/oxidized chitin nanocrystals incorporating black rice bran anthocyanins for seafood spoilage monitoring
复制标题
基于壳聚糖/氧化甲壳素纳米晶并掺入黑米糠花青素的智能薄膜的制备用于海鲜腐败监测
DOI：
10.1016/j.carbpol.2019.115006
复制
发表时间：
2019-10-15
影响因子：
11.2
通讯作者：
Pang, Jie
中科院分区：
文献类型：
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作者：
Wu, Chunhua;Sun, Jishuai;Pang, Jie
以氧化甲壳素纳米晶(O-ChNC)/壳聚糖(CS)为载体，分别固定1%、3%和5%的黑米皮花青素(BACNs)，制备了一种新型智能薄膜。在pH 2.0-12.0的范围内，BACNs溶液的紫外可见光谱显示出从红色到灰绿色的变化。薄膜的傅里叶变换红外光谱和原子力显微镜表明，O-CHNC和BACNs在CS基质中分散良好。虽然BACNs的加入降低了CS/O-ChNCs/BACNs(COB)薄膜的力学性能和阻隔性能，但它赋予了COB薄膜优异的抗紫外线、抗氧化性和pH敏感性。应用试验结果表明，含3%BACNs(COB-3)的COB膜能够通过可见的颜色变化来监测鱼虾的变质情况。因此，研制的COB-3膜可以作为监测动物性蛋白食品腐败的智能食品包装。
A novel intelligent film was developed by immobilizing 1%, 3% and 5% black rice bran anthocyanins (BACNs) into oxidized-chitin nanocrystals (O-ChNCs)/ chitosan (CS) matrix. The ultraviolet-visible spectrum of BACNs solutions showed color variations from red to greyish green in a range of pH 2.0-12.0. Fourier transform infrared spectrum and atomic force microscope of the films showed that O-ChNC and BACNs were well dispersed into the CS matrix. Although the incorporation of BACNs decreased the mechanical and barrier properties of the CS/O-ChNCs/BACNs (COB) films, it endowed the COB films with excellent UV-barrier, antioxidant and pH sensitivity character. The results of the application trial showed that the COB films containing 3% of BACNs (COB-3) were able to monitor the spoiling of fish and shrimp by visible color changes. Therefore, the developed COB-3 films could be used as an intelligent food packaging for monitoring animal-based protein food spoilage.