An intelligent colorimetric film based on complex anthocyanins and bacterial cellulose nanofibers for tilapia freshness detection in an actual cold chain
文献类型： 外文期刊
作者： Shi, Ce 2 ; Han, Jie 1 ; Sun, Xia 1 ; Guo, Yemin 2 ; Yang, Xinting 1 ; Jia, Zhixin 2 ;
作者机构： 1.Shandong Univ Technol, Sch Agr Engn & Food Sci, Zibo 255049, Shandong, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Informat Technol Res Ctr, Beijing 100097, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab Cold Chain Logist Technol Agroprod, Beijing 100097, Peoples R China
4.Beijing Acad Agr & Forestry Sci, Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China
5.Beijing Acad Agr & Forestry Sci, Natl Engn Lab Agriprod Qual Traceabil, Beijing 100097, Peoples R China
关键词： Fish freshness; Cold chain transportation; Intelligent packaging films
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.025； 五年影响因子：7.626 ）
ISSN： 0141-8130
年卷期： 2022 年 221 卷
页码：
收录情况： SCI
摘要： An intelligent colorimetric film was developed for the quality detection of tilapia fillets using bacterial cellulose (BC) as a substrate in combination with pelargonidin (Pg), cyanidin (Cy), and delphinium (Dp). The color of the BC-Pg-Cy-Dp film and Pg-Cy-Dp solution changed from rosy to blue-violet at pH 3-10. The mechanical and antioxidant properties of the film were improved after the addition of Pg-Cy-Dp. Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM) showed that a new hydrogen bond might be formed between the cellulose chain and the anthocyanin molecule, which increased the density of the film. The BC-Pg-Cy-Dp film displayed a large color difference from rosy to blue-violet when applied to tilapia fillet storage. The changes of K values indicated a good linear relationship with the change in & UDelta;E at 4 C and 25 C. In the actual cold chain, the color of the film changed from rosy to purple, which could be identified by the naked eye and indicated that the fish were in the first fresh stage. Thus, the BC-Pg-Cy-Dp film can be used as an intelligent packaging film during storage to monitor the freshness of fish by the naked eye.
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