The modification effects of roselle anthocyanin film on shrimp texture via water distribution controlling and protein conformation maintenance  

作　　者：Jiayin Huang Zhiheng Hu Lingping Hu Gaoshang Li Chunhong Yuan Jianchu Chen Yaqin Hu 

机构地区：[1]Institute of Food Engineering,College of Biosystems Engineering and Food Science,Zhejiang University,Hangzhou,Zhejiang,310058,China [2]College of Food Science and Engineering,Hainan Tropical Ocean University,Sanya,Hainan,572022,China [3]Yazhou Bay Innovation Institute,Sanya,Hainan,572022,China d Marine Food Engineering Technology Research Center of Hainan Province,Sanya,Hainan,572022,China [4]Collaborative Innovation Center of Marine Food Deep Processing,Sanya,Hainan,572022,China [5]Hainan Key Laboratory of Herpetological Research,College of Fisheries and Life Science,Hainan Tropical Ocean University,Sanya,Hainan,572022,China [6]Department of Food Production and Environmental Management,Faculty of Agriculture,Iwate University,Ueda4-3-5,Morikoa,020-8551,Japan

出　　处：《Food Bioscience》2022年第5期872-883,共12页食品生物科学（英文）

基　　金：the funding support of Hainan Provincial Natural Science Foundation of China(321CXTD1012);Scientific Research Foundation of Hainan Tropical Ocean University(RHDRC202117);Japan Society for the Promotion of Science(19H05611).

摘　　要：The food’s perishable properties and people’s eco-friendly requirements have driven the biodegradable active packaging development.In this study,modification behaviors of polyviniyl alcohol/hydroxypropyl methylcellulose/roselle anthocyanin-based(PHR)film on textural profiles of Penaeus vannamei were investigated.Shrimp samples were packaged by PHR film with different roselle anthocyanin contents and stored at 4±1℃.The results indicated that PHR groups exhibited better texture with higher values of hardness(435.56±75.52 g),springiness(0.53±0.04 mm),chewiness(198.83±40.98 N)and resilience(0.45±0.04).The PHR film exerted positive influences on water migration by reducing drip loss and promoting conversion of free water into immobilized water.Meanwhile,the PHR film retarded protein denaturation via increasing myofibrillar protein and sulfhydryl group contents,decreasing TCA(trichloroacetic acid)-soluble peptide contents and maintaining protein secondary structure(higherα-helix ratio and lowerβ-sheet ratio).In conclusion,the PHR film improved shrimp texture by rearrangement of water distribution and stabilization of protein conformation.Hence,the PHR film was a novel potential active packaging for shrimp texture enhancement.

关 键 词：Active packaging Textural properties Water migration Protein conformation 

分 类 号：TS254.4[轻工技术与工程—水产品加工及贮藏工程]