Liu Yingnan, Jiang Wanqi, Yang Zan, Tong Fei, Wang Lei, Zhu Lu, Yu Zhenyu, Zheng Mingming, Xiao Yaqing, Zhou Yibin
Food Processing Research Institute, Anhui Engineering Laboratory for Agro-products Processing, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei 230036, China.
Food Processing Research Institute, Anhui Engineering Laboratory for Agro-products Processing, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei 230036, China.
Food Chem. 2022 Sep 15;388:132963. doi: 10.1016/j.foodchem.2022.132963. Epub 2022 Apr 12.
A zein-based film functionalized with fluorescent dyes was constructed for visual, real-time monitoring of seafood freshness. The addition of fluorescent dyes had no significant effect on the mechanical property or water sensitivity of the zein-based film, and the fluorescent film exhibited dual emission response. When exposed to ammonia, fluorescein fluorescence increased whilst the fluorescence of rhodamine B was undisturbed. The fluorescent film presented a clearly distinguishable color transition from pink to green. Sample detection tests showed the fluorescent film served successfully as a response label for on-site visual detection of seafood freshness. Development of this intelligent fluorescent film provides a new platform for food safety and quality monitoring, benefiting economic value and public health.
构建了一种用荧光染料功能化的玉米醇溶蛋白基薄膜，用于对海鲜新鲜度进行可视化实时监测。荧光染料的添加对玉米醇溶蛋白基薄膜的机械性能或水敏感性没有显著影响，且该荧光薄膜表现出双重发射响应。暴露于氨气中时，荧光素荧光增强，而罗丹明B的荧光不受影响。该荧光薄膜呈现出从粉红色到绿色的明显可区分的颜色转变。样品检测试验表明，该荧光薄膜成功用作现场可视化检测海鲜新鲜度的响应标签。这种智能荧光薄膜的开发为食品安全和质量监测提供了一个新平台，有利于经济价值和公众健康。
