食品科学2017，Vol.38Issue(3)：220-226,7.DOI:10.7506/spkx1002-6630-201703036
茶多酚改性胶原蛋白-壳聚糖复合膜对冷藏斜带石斑鱼的保鲜效果
Preservation Effect of Collagen-Chitosan Blend Film Modified by Tea Polyphenols on Grouper (Epinephelus coioides) Fillets Stored at 4 ℃
摘要
Abstract
The preservative effect of collagen-chitosan blend film modified by tea polyphenols on the quality of Epinephelus coioides was evaluated.The samples from the blank control group,collagen-chitosan blend film group (T1) and blend film group modified by tea polyphenols (T2) were stored at 4 C for 20 days.The K value,actomyosin content,total sulfhydryl content (-SH),Ca2+-ATPase activity,pH,total volatile basic nitrogen (TVB-N) value,thiobarbityric acid (TBA) value,total viable count (TVC),and sensory evaluation were measured during storage.The results indicated that total sulfhydryl content,actomyosin content,Ca2+-ATPase activity and sensory evaluation in T1 and T2 treatments were significantly (P ＜ 0.05) higher than those in the blank control group,while a significant decrease in K value,pH,TVB-N,and TVC was observed (P ＜ 0.05),indicating that the preservative effect of T2 was superior to that of T1.Furthermore,the difference in TBA was not significant (P ＞ 0.05) among these groups.T2 treatment slowed down the degradation of actomyosin,blocked the reduction of-SH content and Ca2+-ATPase activity,and inhibited the increase of TVB-N and TVC as well as the growth of total bacterial counts.These observations suggested that the blend film modified by tea polyphenols could effectively retard the spoilage ofEpinephelus coioides at 4 ℃,being advantageous in preservation.关键词
斜带石斑鱼/胶原蛋白/复合膜/茶多酚/保鲜Key words
grouper/collagen/blend film/tea polyhenols/preservation分类
轻工纺织引用本文复制引用
于林,陈舜胜,王娟娟,王倩..茶多酚改性胶原蛋白-壳聚糖复合膜对冷藏斜带石斑鱼的保鲜效果[J].食品科学,2017,38(3):220-226,7.基金项目
国家自然科学基金面上项目(31471685) （31471685）
“十二五”国家科技支撑计划项目(2012BAD28B05) （2012BAD28B05）
融合海洋食品科学的海洋生物药物项目(B5201120040) （B5201120040）
上海市2015高校内涵建设项目(A2018150009) （A2018150009）
