Preparation and application of a colorimetric film based on sodium alginate/sodium carboxymethyl cellulose incorporated with rose anthocyanins

Yang Yang; Xuena Yu; Yanling Zhu; Yan Zeng; Chunshan Fang; Yu Liu; Shiwei Hu; Yaming Ge; Wei Jiang

doi:10.1016/j.foodchem.2022.133342

Preparation and application of a colorimetric film based on sodium alginate/sodium carboxymethyl cellulose incorporated with rose anthocyanins

Food Chem. 2022 Nov 1:393:133342. doi: 10.1016/j.foodchem.2022.133342. Epub 2022 May 28.

Authors

Yang Yang¹, Xuena Yu², Yanling Zhu², Yan Zeng², Chunshan Fang¹, Yu Liu³, Shiwei Hu³, Yaming Ge³, Wei Jiang⁴

Affiliations

¹ Key Laboratory of Key Technical Factors in Zhejiang Seafood Health Hazards, College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
² Institute of Innovation and Application, Zhejiang Ocean University, Zhoushan 316022, China.
³ Key Laboratory of Key Technical Factors in Zhejiang Seafood Health Hazards, College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China; Institute of Innovation and Application, Zhejiang Ocean University, Zhoushan 316022, China.
⁴ Key Laboratory of Key Technical Factors in Zhejiang Seafood Health Hazards, College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China; Institute of Innovation and Application, Zhejiang Ocean University, Zhoushan 316022, China. Electronic address: jiangw@zjou.edu.cn.

PMID: 35661468
DOI: 10.1016/j.foodchem.2022.133342

Abstract

To monitor the freshness of Penaeus vannamei during storage, a colorimetric film based on sodium alginate/sodium carboxymethyl cellulose incorporated with rose anthocyanins extract (RAE) was prepared. The results showed that the incorporation of RAE increased moisture content, water vapor permeability, and water contact angle of the colorimetric film. FTIR, XRD spectra, and SEM demonstrated that RAE had good compatibility with the film-forming substrate. The colorimetric film presented obvious color variation in the pH range of 2.0-12.0 and was sensitive to volatile ammonia. The colorimetric film exhibited a visual color change from pink to pale yellow to yellowish green during the storage of Penaeus vannamei at 4 °C. Significant correlations were observed between the color change of colorimetric film (ΔE) and the pH value or TVB-N content of Penaeus vannamei (p < 0.05). Therefore, the colorimetric film shows great application potential to monitor the freshness of shrimp as intelligent packaging.

Keywords: Colorimetric film; Freshness monitoring; Penaeus vannamei; Rose anthocyanins.

MeSH terms

Alginates
Anthocyanins* / chemistry
Carboxymethylcellulose Sodium
Colorimetry
Food Packaging / methods
Hydrogen-Ion Concentration
Rosa*
Sodium

Substances

Alginates
Anthocyanins
Sodium
Carboxymethylcellulose Sodium