Abstract
The effects of non-ionic (sorbitol, maltose, trehalose) and ionic compounds (Na-glutamate, Na-acetate, Na-sulfate, ammonium sulfate) on freeze denaturation of myosin subfragment-1 (S-1) and of myofibrils were compared. Sugars, Na-glutamate and Na-acetate well suppressed the freeze denaturation of myofibrils as well as S-1 in a concentration dependent manner. Although sulfate suppressed freeze denaturation of S-1 irregularly, it accelerated myofibril denaturation. It was concluded that sulfate salts were useless as cryoprotectant for myofibrils. Stabilization extent by F-actin in frozen storage was much less than that in heating.
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Hayashi, K., Azuma, Y., Koseki, S. et al. Different effects of ionic and non-ionic compounds on the freeze denaturation of myofibrils and myosin subfragment-1. Fish Sci 73, 178–183 (2007). https://doi.org/10.1111/j.1444-2906.2007.01316.x
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DOI: https://doi.org/10.1111/j.1444-2906.2007.01316.x