コイの筋タイプ別細胞化学的Mg^<2+>-ATPase活性の氷蔵中における変化

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We performed the comparative study on changes of cytochemical Mg^<2+>-adenosine triphosphatase (Mg^<2+>-ATPase) activity and its localization caused by a decrease in freshness of white (W), pink (P), and red (R) muscles in cultured carp during storage in ice. The contents of ATP-related compounds in the three muscle types were higher in the order of R>P>W, and the increasing of K value was faster in the order of R>P>W. Mg^<2+>-ATPase activity was found on the A band of myofibril, sarcoplasmic reticulum and mitochondria menbrane/crista in each muscle type at just after killing. The deactivation of Mg^<2+>-ATPase activity in these organella was faster in the order of R>P>W during storage period. The interposition of pink muscle fibers into the dorsal ordinary muscle might accelerate the deterioration of fish mucle in post-mortem.
日本食品化学学会の論文
2014-04-25