卷:197 | |
Postmortem changes in actomyosin dissociation, myofibril fragmentation and endogenous enzyme activities of grass carp (Ctenopharyngodon idellus) muscle | |
Wang, Daoying ; Zhang, Muhan ; Deng, Shaoying ; Xu, Weimin ; Liu, Yuan ; Geng, Zhiming ; Sun, Chong ; Bian, Huan ; Liu, Fang | |
Jiangsu Acad Agr Sci | |
关键词: Actomyosin dissociation; Myofibril fragmentation; Endogenous enzyme activities; Grass carp; | |
DOI : 10.1016/j.foodchem.2015.10.132 | |
学科分类:食品科学和技术 | |
【 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.
【 授权许可】
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