Effects of Chitosan/EGCG@MNPs Nanocomposite Packaging on Preservation of Blueberries Stored at Low Temperature and Normal Temperature

Autor: Xiaoyun LIANG, Wangchen ZHAO, Chen ZHANG, Xiqi WANG, Siqi WANG, Xiaoyu MI, Longfeng WANG
Jazyk: čínština
Rok vydání: 2022
Předmět:
Zdroj: Shipin gongye ke-ji, Vol 43, Iss 24, Pp 268-279 (2022)
Druh dokumentu: article
ISSN: 1002-0306
DOI: 10.13386/j.issn1002-0306.2022030326
Popis: In this study, EGCG loaded melanin-like nanoparticles (EGCG@MNPs) were incorporated into chitosan matrix for preparing an active nanocomposite food packaging film to extend shelf-life of post-harvest blueberries. First, the chitosan/EGCG@MNPs nanocomposite film was successfully prepared using a solution casting method. Then, the films were manufactured as individual heat-sealing packaging bags in which fresh blueberries were packed in, and the packaged blueberries were stored at 4 and 25 ℃, respectively. During storage, the sensory and physicochemical indexes such as weight loss, decay rate, hardness, respiration intensity, microorganisms, and apparent quality of blueberries were analyzed to explore the preservation effect of the nanocomposite packaging films. The results showed that the weight loss, decay rate and hardness of blueberry was significantly delayed (P
Databáze: Directory of Open Access Journals