使用弱酸性电解水和含瑞香素乳液的活性涂层延长冷藏大菱鲆的货架期

Shelf-Life Extension of Refrigerated Turbot () by Using Weakly Acidic Electrolyzed Water and Active Coatings Containing Daphnetin Emulsions.

作者信息

Liu Wenru, Wang Qi, Mei Jun, Xie Jing

机构信息

College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.

Center for Food Science and Engineering, National Experimental Teaching Demonstration, Shanghai Ocean University, Shanghai, China.

出版信息

Front Nutr. 2021 Jul 15;8:696212. doi: 10.3389/fnut.2021.696212. eCollection 2021.

This research was to investigate the effect of weakly acidic electrolytic water (WAEW) treatments combining with the locust bean gum (LBG) and sodium alginate (SA) active coatings, containing daphnetin emulsions on microbiological, physicochemical, and sensory changes of turbot () during refrigerated storage at 4°C for 24 days. Results showed that WAEW, together with LBG-SA coatings containing daphnetin emulsions treatments, could significantly lower the total viable count (TVC), HS-producing bacteria, pseudomonas spp., and psychrotrophic bacteria counts, and inhibit the productions of off-flavor compounds, including the total volatile basic nitrogen (TVB-N), inosine (HxR), and hypoxanthine (Hx). Furthermore, the treatments also prevented textural deterioration, delayed water migration, and had higher organoleptic evaluation results. Therefore, WAEW, together with LBG-SA coatings, containing daphnetin emulsions treatments, had the potential to improve the quality of turbot during refrigerated storage.

本研究旨在探讨弱酸性电解水（WAEW）处理结合含有瑞香素乳液的刺槐豆胶（LBG）和海藻酸钠（SA）活性涂层，对大菱鲆在4°C冷藏24天期间的微生物、理化和感官变化的影响。结果表明，WAEW与含有瑞香素乳液的LBG-SA涂层处理相结合，可显著降低总活菌数（TVC）、产硫化氢细菌、假单胞菌属和嗜冷菌数量，并抑制包括总挥发性碱性氮（TVB-N）、肌苷（HxR）和次黄嘌呤（Hx）在内的异味化合物的产生。此外，这些处理还可防止质地恶化，延缓水分迁移，并获得更高的感官评价结果。因此，WAEW与含有瑞香素乳液的LBG-SA涂层处理相结合，有潜力在冷藏期间改善大菱鲆的品质。