摘要
目的提高复合缓释涂膜对美国红鱼鱼片的保鲜性能,获得具有长效作用的高效保鲜材料。方法将具有缓释作用的茶多酚脂质体(TP-Lips)与溶菌酶(LZM)复合后加入至壳聚糖(CS)涂膜液中,采用流延法制备TP-Lips/LZM-CS复合缓释涂膜。以美国红鱼鱼片的新鲜度为指针,评价复合涂膜的保鲜性能。结果TP-Lips/LZM-CS复合缓释涂膜可有效抑制鱼肉中微生物的生长,延缓鱼片pH、硫代巴比妥酸(TBA)值的升高和鱼肉质构指标的变化。结论TP,LZM和CS的复合使用有效地拓宽了抗菌谱,同时,脂质体和涂膜共同组成的缓释体系,使TP和LZM的作用时间更长,TP-Lips/LZM-CS复合涂膜的保鲜性能最优,并能够将4℃下冷藏美国红鱼鱼片的货架期延长至15 d以上。
The work aims to improve the preservation properties of composite sustained released coatings on the storage quality of Sciaenops ocellatus fillets, and acquire efficient preserving material with long-acting effects. The tea polyphenol liposomes(TP-Lips) with sustained-release property and lysozyme(LZM) were mixed into chitosan(CS) solution to prepare TP-Lips/LZM-CS sustained released composite coating by tape casting method. The preservation properties of composite coatings were evaluated according to the freshness of fish fillets. TP-Lips/LZM-CS composite coating could inhibit the the microbial growth effectively, and delay the increase of pH and TBA value in the fish fillets, as well as the changes of texture. The antibacterial spectrum is broadened efficiently due to the combined use of TP, LZM and CS. Meanwhile, the slow-release system composed of liposomes and coating film makes the action time of TP and LZM longer, so the preservation properties of TP-Lips/LZM-CS composite coating is the optimal, and the shelf life of Sciaenops ocellatus fillets is extended to 15 days when they are refrigerated at 4 ℃.
作者
张冉
杨丽丽
李秋莹
李颖畅
孙彤
励建荣
ZHANG Ran;YANG Li-li;LI Qiu-ying;LI Ying-chang;SUN Tong;LI Jian-rong(Key Food Safety Laboratory of Liaoning Province,School of Food Science and Engineering,Bohai University,Jinzhou 121013,China;National&Local Joint Engineering Research Center of Storage,Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products,Jinzhou 121013,China)
出处
《包装工程》
CAS
北大核心
2020年第1期44-50,共7页
Packaging Engineering
基金
国家重点研发计划（2016YFD0400805）
国家自然科学基金（31371858)
关键词
茶多酚
脂质体
溶菌酶
壳聚糖
涂膜
缓释
美国红鱼
tea polyphenol
liposomes
lysozyme
chitosan
coating
sustained-release
Sciaenops ocellatus
