Facile fabrication of sandwich-like anthocyanin/chitosan/lemongrass essential oil films via 3D printing for intelligent evaluation of pork freshness

被引:89
作者
Li, Suqing [1 ]
Jiang, Yalan [1 ]
Zhou, Yuting [1 ]
Li, Runze [1 ]
Jiang, Yufei [1 ]
Hossen, Md Alomgir [1 ]
Dai, Jianwu [2 ]
Qin, Wen [1 ]
Liu, Yaowen [1 ]
机构
[1] Sichuan Agr Univ, Coll Food Sci, Yaan 625014, Peoples R China
[2] Sichuan Agr Univ, Coll Mech & Elect Engn, Yaan 625014, Peoples R China
基金
中国国家自然科学基金;
关键词
Chitosan; Mulberry anthocyanin; Lemongrass essential; Freshness; PH-INDICATOR; CHITOSAN; ANTIOXIDANT; ANTHOCYANIN; EXTRACTS; STARCH; PURPLE;
D O I
10.1016/j.foodchem.2021.131082
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
In this study, chitosan (CH), mulberry anthocyanin (MA), and lemongrass essential oils (LEO) were used as an interlayer using a 3D printer. Further, cassava starch (CS) was used as a protective layer to form indicator films. The indicator films containing LEO showed significant antioxidant and antibacterial properties, and the release rate of LEO increased with a rise in pH. When chilled pork spoiled, the color of the indicator films changed from red to gray-blue, and the RGB values could be automatically analyzed by a smartphone application to determine pork freshness. These films hold implications as easy-to-use indicators of meat freshness, with great potential for monitoring food spoilage, as part of an intelligent packaging system.
引用
收藏
页数:13
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