Chitosan-wampee seed essential oil composite film combined with cold plasma for refrigerated storage with modified atmosphere packaging: A promising technology for quality preservation of golden pompano fillets

• Published in: International journal of biological macromolecules 2023-01, Vol.224, p.1266-1275
• Main Authors: Wang, Siting, Liu, Zhiqing, Zhao, Mantong, Gao, Chengyan, Wang, Jiamei, Li, Chuan, Dong, Xiuping, Liu, Zhongyuan, Zhou, Dayong
• Format: Article
• Language: English
• Subjects: Animals; Chitosan; Chitosan - pharmacology; Composite film; Fishes; Food Packaging - methods; Food Preservation - methods; Food Storage; Golden pompano fillets preservation; Oils, Volatile; Plasma Gases; Refrigerated storage; Wampee seed essential oil
• ISSN: 0141-8130; 1879-0003
• DOI: 10.1016/j.ijbiomac.2022.10.212

The effect of chitosan-wampee seed essential oil (WSEO) composite film coating before cold plasma (CP) treatment on the quality preservation of golden pompano fillets during refrigerated storage was investigated and compared with that of chitosan and CP alone. The results indicated that the chitosan-WSEO composite film coating before CP treatment and modified atmosphere packaging (MAP), referred to as CPCW-M, exhibited the lowest total bacterial count, total volatile base nitrogen, and peroxide and thiobarbituric acid values of 4.03 log culture-forming units (CFU)/g, 13.45 mg/100 g, 24.65 meq/kg, and 1428.4 μg MDAeq/kg, respectively. Simultaneously, it contributed to the most profound inhibition of the lipid hydrolase, lipoxygenase, thus effectively preventing the oxidative deterioration of unsaturated fatty acids. Moreover, minimal color changes, drip loss, and texture deterioration of the fillets were observed. Therefore, the edible chitosan-WSEO composite film, together with CP and MAP, was effective in preserving golden pompano fillets and extending shelf life throughout the refrigerated storage period. •Chitosan-wampee seed essential oil composite (C-WEO) film was applied for golden pompano fillets preservation.•Cold plasma exerted antibacterial effect and induced lipid oxidation.•C-WEO film could inhibit microbial proliferation, maintain fillet texture profiles and inhibit lipid hydrolase, LOX.•Modified atmosphere packaging could enhance the preservation ability.