圧力によるコイ筋原線維Ca-ATPaseの失活とソルビトールによる抑制作用

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タイトル別名
  • High pressure induced inactivation of carp myofibrillar Ca-ATPase and protecting effect of sorbitol.
  • 圧力によるコイ筋原線維Ｃａ‐ＡＴＰａｓｅの失活とソルビトールによる抑制作用
  • アツリョク ニ ヨル コイ キンゲン センイ Ca ATPase ノ シッカツ

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To investigate the effect of high pressure on fish myofibrillar protein, the inactivation of carp myofibrillar Ca-ATPase in the presence and absence of sorbitol was measured.<br>The results obtained were as follows: 1) The pressure-induced inactivation of myofibrillar Ca-ATPase accelerated with increasing in pressure and in treating time under the pressure. The myofibrillar Ca-ATPase was inactivated almost completely by a pressure of 2.0 kbar at 0°C for 60min. 2) The mode of pressure-induced inactivation was biphasic first order step; a fast early phase followed by a slow phase. 3) The inactivation of myofibrillar Ca-ATPase induced by the pressure was markedly protected by the addition of sorbitol. The protecting effect of sorbitol depended upon the sorbitol concentration, but not on the myofibrillar protein concentra-tion in the system.<br>The results suggested that sorbitol suppressed the pressure-induced inactivation of myo-fibrillar Ca-ATPase through the change of water structure in the medium.

収録刊行物

  • 日本水産学会誌

    日本水産学会誌 55 (10), 1841-1844, 1989

    公益社団法人 日本水産学会

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