肇实壳提取物与海藻酸钠涂膜保鲜鱼肉的研究  

Coatings Composed of Extracts from Euryale ferox Seed Shells and Sodium Alginate for Preservation of Fish

作　　者：刘永[1] 罗碧欣 黄志明[1] 

机构地区：[1]肇庆学院化学化工学院,肇庆526061

出　　处：《食品工业》2013年第11期16-19,共4页The Food Industry

基　　金：肇庆市科技计划项目(201123501);广东省科技计划项目(2011B020314011)

摘　　要：以感官评分、细菌总数、挥发性盐基氮和pH为评价指标,将新鲜鱼片涂膜后在4℃冷藏,通过测定鱼肉在冷藏过程中上述指标的变化,研究肇实壳提取物与海藻酸钠复合涂膜对鱼肉的保鲜效果。结果表明,该复合涂膜能较好维持鱼肉的感官,减少细菌总数,减缓挥发性盐基氮和pH的升高。添加2.5%提取物的涂膜能使鱼肉的二级鲜度延长6 d左右,具有较好的保鲜效果。抑菌试验表明肇实壳提取物与海藻酸钠涂膜具有较好的抑菌性能。In order to investigate the coatings composed of extracts from Euryale ferox seed shells and sodium alginate for preservation offish, the fresh fillets coated were refrigerated at 4℃ and then measured the changes of indexes, such as sensory score, total bacteria count, total volatile basic nitrogen and pH, to evaluate the preservation effect in the refrigeration process. The results show that the coatings can significantly maintain the senses of fish, reducing the total bacteria count and slowing the increase of total volatile basic nitrogen and pH. The coatings containing the extracts of 2.5% can extend the second fresh grade offish for 6 d, indicating good preservation effect. The antibacterial test shows that the coatings composed of the extracts and sodium alginate have good antibacterial properties.

关 键 词：肇实壳 海藻酸钠 涂膜 保鲜 

分 类 号：TS254.4[轻工技术与工程—水产品加工及贮藏工程]