イワシ肉氷蔵中の筋原繊維タンパク質のATPase活性およびその他の性状変化

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タイトル別名
  • イワシ肉氷蔵中の筋原線維たんぱく質のATPアーゼ活性およびその他の性状変化
  • Changes in ATPase Activities and Other Properties of Sardine Myofibrillar Proteins during Ice-storage
  • イワシ ニク ヒョウゾウチュウ ノ キンゲン センイ タンパクシツ ノ ATP

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The process of dererioration of the ordinary muscle of sardine, Sardinops melanosticta, during ice-storage was studied by the measurements of myofibrillar ATPase activities, subunit composition, and other properties<br> Myofibrillar EDTA-ATPase activity lost about 70% after 1 day-storage in ice. Ca2+-and Mg2+-ATPase activities decreased to 50%-40% of their initial levels after 6 day-storage, while Mg2+-ATPase activity in the presence of EGTA increased and then decreased. A similar change in ATPase activities was observed when the isolated myofibrils were stored in a solution at pH 6.0, whereas little change occurred in the ATPase activities at pH 7.0<br> Subunit composition of the myofibrellar proteins with exception of myosin showed little change during ice-storage, while some degradation of myosin heavy chain due to proteolysis was observed<br> A specific sarcoplasmic protein was insolubilized readily within the 1 day-storage of muscle.

収録刊行物

  • 日本水産学会誌

    日本水産学会誌 46 (5), 607-615, 1980

    公益社団法人 日本水産学会

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