College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai 201306, China; Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai 201306, China; National Experimental Teaching Demonstration Center for Food Science and Engineering (Shanghai Ocean University), Shanghai 201306, China.
Food Chem. 2022 Sep 30;389:133065. doi: 10.1016/j.foodchem.2022.133065. Epub 2022 Apr 25.
This study aimed to investigate the effects of starch/polyvinyl alcohol (starch/PVA) film containing cinnamaldehyde (CIN) with different humidity treatment on the quality changes of large yellow croaker (Pseudosciaena crocea) under vacuum packaging during frozen storage. It was evaluated by measuring the water loss, water migration, total volatile basic nitrogen (TVB-N), thiobarbituric acid (TBA), free amino acids (FAA) content, myofibril secondary and tertiary structure and microstructure of large yellow croaker. Compared with control group, the starch/PVA films could inhibit the water loss, water migration, protein degradation, lipid oxidation and microstructure damage of fish. The film containing CIN with higher humidity treatment showed the best protective effect for large yellow croaker. The film with higher humidity treatment showed better to maintain the quality of fish than that with low humidity treatment. Therefore, starch/PVA active film containing CIN with high humidity treatment showed good fresh-keeping potential in the frozen storage of aquatic products.
本研究旨在探讨不同湿度处理的含肉桂醛（CIN）的淀粉/聚乙烯醇（starch/PVA）膜对真空包装大黄鱼在冷冻贮藏过程中品质变化的影响。通过测量大黄鱼的水分损失、水分迁移、总挥发性碱性氮（TVB-N）、硫代巴比妥酸（TBA）、游离氨基酸（FAA）含量、肌原纤维二级和三级结构以及大黄鱼的微观结构来评估。与对照组相比，淀粉/PVA 薄膜可以抑制鱼的水分损失、水分迁移、蛋白质降解、脂质氧化和微观结构损伤。高湿度处理的含 CIN 的薄膜对大黄鱼表现出最好的保护作用。高湿度处理的薄膜比低湿度处理的薄膜更能保持鱼的质量。因此，高湿度处理的含 CIN 的淀粉/PVA 活性薄膜在水产品的冷冻贮藏中具有良好的保鲜潜力。
