食品科学2016，Vol.37Issue(14)：231-236,6.DOI:10.7506/spkx1002-6630-201614042
鲢鱼皮改性明胶复合多肽锌对草鱼的保鲜作用
Effect of Modified Gelatin from Silver Carp Skin Combined with Peptide-Zn Complex on Preservation of Grass Carp
摘要
Abstract
The coating preservation of gelatin modified by transglutaminase (TGase) combined with peptide-Zn complex from silver carp skin on grass carp was studied. Sensory evaluation, thiobarbituric acid (TBA), total volatile basic nitrogen (TVB-N), pH value and total bacterial count were measured to study the quality changes of grass carp with different treatments during cold storage. The results showed that modified gelatin alone and its combination with peptide-Zn complex prepared from silver carp skin protein hydrolysate were both effective in preventing deterioration and preserving the quality of grass carp by significantly inhibiting the increases in TBA value, TVB-N value and pH value and restraining bacterial growth. Modified gelatin was comparable to sodium alginate combined with peptide-Zn complex in terms of efficacy. However, compared with sodium alginate combined with peptide-Zn complex, grass carp had a better quality on the 6th d of storage after being coated with modified gelatin combined with peptide-Zn complex. As a result, the quality of grass carp remained at the first and second grades both for 3 more days. In conclusion, modified gelatin combined with peptide-Zn complex was a more effective coating for preserving the quality of aquatic products when compared with the combination with sodium alginate.关键词
改性明胶/多肽锌/草鱼/涂膜保鲜Key words
modified gelatin/peptide-Zn complex/grass carp/coating preservation分类
轻工业引用本文复制引用
张玲,马月,罗永康,李博..鲢鱼皮改性明胶复合多肽锌对草鱼的保鲜作用[J].食品科学,2016,37(14):231-236,6.基金项目
国家高技术研究发展计划（863计划）项目（2011AA100803）；国家现代农业产业技术体系建设专项 （）
