Postmortem changes in actomyosin dissociation, myofibril fragmentation and endogenous enzyme activities of grass carp (Ctenopharyngodon idellus) muscle
文献类型: 外文期刊
第一作者: Wang, Daoying
作者: Wang, Daoying;Zhang, Muhan;Deng, Shaoying;Xu, Weimin;Geng, Zhiming;Sun, Chong;Bian, Huan;Liu, Fang;Liu, Yuan
作者机构:
关键词: Actomyosin dissociation;Myofibril fragmentation;Endogenous enzyme activities;Grass carp
期刊名称:FOOD CHEMISTRY ( 影响因子:7.514; 五年影响因子:7.516 )
ISSN:
年卷期:
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收录情况: SCI
摘要: The changes of actomyosin, proteolytic activities and myofibril fragmentation during the postmortem aging of grass carp were studied. The study revealed dramatically increased actomyosin dissociation within 6 h of storage postmortem in grass carp, and it was associated with the drop of pH from 6.9 to 6.7, while liberated actin remained almost unchanged after 6 h postmortem. The myofibril fragmentation also increased significantly with the storage time in 6 h, and a highly positive correlation (P < 0.01) existed between MFI and cathepsin B, D, H activities. The study indicated both actomyosin dissociation and cathepsin B, D, H played a role in postmortem tenderization and textural changes in grass carp. (C) 2015 Elsevier Ltd. All rights reserved.
分类号: TS2`TS201.2
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