魚肉アクトミオシンの超沈殿およびATP ase活性におよぼすオットセイ骨格筋加水分解ペプチドの効果〔英文〕

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In the previous paper, the existence of a component with accelerating effects on the contractile activity of fish muscle actomyosin was found in the hydrolysate of fur seal skeletal muscle. This work was undertaken to isolate the active peptide components from the fur seal muscle hydrolysate. Minced skeletal muscle of fur seal was digested with protease and the resulting hydrolysate was gel filtered on Sephadex G-25. The eluate was divided into four major fractions, each of which was tested for accelerating effect on superprecipitation and ATPase activity of fish actomyosins.On both superprecipitation and ATPase activities, Fraction 3 of the gel filtration showed the best accelerating effect, while Fractions 2 and 4 showed lesser effects. This suggests that the accelerating factor for superprecipitation and ATPase activity is related with but distinct from the vasoactive and vasodilatory factors which were found to be most prominent in Fraction 2 as reported previously.
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