食物腐败
双层
材料科学
明胶
活性包装
结冷胶
生物高聚物
化学工程
图层(电子)
纳米技术
化学
食品包装
食品科学
膜
复合材料
聚合物
有机化学
细菌
工程类
生物
生物化学
遗传学
作者
Yang Zhang,Xiaodong Zhai,Xiaobo Zhang,Jiyong Shi,Xiaowei Huang,Zhihua Li,Yun Gong,Melvin Holmes,M. J. W. Povey,Jianbo Xiao
出处
期刊:Food Chemistry
[Elsevier]
日期:2021-01-01
卷期号:336: 127634-127634
被引量:57
标识
DOI:10.1016/j.foodchem.2020.127634
摘要
Bilayer colorimetric films were developed for monitoring fish spoilage by using gelatin (GN) incorporated with ZnO nanoparticles as the upper layer (GN-ZnO), and gellan gum (GG) incorporated with mulberry anthocyanins (MBA) as the lower layer (GG-MBA). The color stability of the bilayer colorimetric films under visible and ultraviolet light was improved with the increase of ZnO nanoparticles content. Meanwhile, the bilayer films had good NH3 sensitivity. The limit of detection of the GG-MBA/GN-2.0% ZnO film to NH3 was 0.01 mM. The electrochemical writing ability of the bilayer films was also identified, indicating the feasibility of inks-free printing on biopolymer films. Finally, the GG-MBA/GN-2.0% ZnO film with an electrochemical writing pattern was used to monitor crucian spoilage. The GG-MBA/GN-2.0% ZnO film with electrochemical writing pattern showed visible color changes with the crucian spoilage. In conclusion, the bilayer colorimetric film was expected to be a good fish spoilage indicator in smart packaging.
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