Intelligent packaging films incorporated with anthocyanins-loaded ovalbumin-carboxymethyl cellulose nanocomplexes for food freshness monitoring

Liming Liu; Weina Wu; Luman Zheng; Jiahao Yu; Peilong Sun; Ping Shao

doi:10.1016/j.foodchem.2022.132908

Intelligent packaging films incorporated with anthocyanins-loaded ovalbumin-carboxymethyl cellulose nanocomplexes for food freshness monitoring

Food Chem. 2022 Sep 1:387:132908. doi: 10.1016/j.foodchem.2022.132908. Epub 2022 Apr 6.

Authors

Liming Liu¹, Weina Wu¹, Luman Zheng¹, Jiahao Yu¹, Peilong Sun², Ping Shao³

Affiliations

¹ Department of Food Science and Technology, Zhejiang University of Technology, Zhejiang, Hangzhou 310014, China.
² Department of Food Science and Technology, Zhejiang University of Technology, Zhejiang, Hangzhou 310014, China; Key Laboratory of Food Macromolecular Resources Processing Technology Research, China National Light Industry, Zhejiang, Hangzhou 310014, China.
³ Department of Food Science and Technology, Zhejiang University of Technology, Zhejiang, Hangzhou 310014, China; Key Laboratory of Food Macromolecular Resources Processing Technology Research, China National Light Industry, Zhejiang, Hangzhou 310014, China. Electronic address: pingshao325@zjut.edu.cn.

PMID: 35421645
DOI: 10.1016/j.foodchem.2022.132908

Abstract

An intelligent colorimetric film was prepared to monitor mushrooms freshness by incorporating anthocyanin-loaded ovalbumin-carboxymethyl cellulose nanocomplexes (OVA-CMC-ACNs) into corn starch/polyvinyl alcohol matrix. The results showed that ACNs could be loaded into OVA-CMC nanocomplexes with larger particle size and more uniform size distribution. The structure, physical properties, colorimetric response and practical application of films were studied. Compared with SP/ACNs film incorporation of free anthocyanins, SP/OVA-CMC-ACNs film had denser structure, higher mechanical and water barrier properties, and better thermal stability, which were related to the hydrogen bond among film components by FT-IR. The SP/OVA-CMC-ACNs film showed obvious colorimetric response in CO₂ gas and pH buffer. The successful applications of intelligent film for the freshness monitoring of mushrooms. The intelligent film could monitor the freshness of mushrooms during the storage by visual color change from purple to pink. These results indicated that prepared SP/OVA-CMC-ACNs film have great application potential in intelligent food packaging.

Keywords: Anthocyanins; Intelligent packaging; Mushroom; Nanocomplexes; pH indicator film.

MeSH terms

Anthocyanins* / chemistry
Carboxymethylcellulose Sodium*
Food Packaging / methods
Hydrogen-Ion Concentration
Ovalbumin
Spectroscopy, Fourier Transform Infrared

Substances

Anthocyanins
Ovalbumin
Carboxymethylcellulose Sodium