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KMID : 0380619880200030371
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Korean Journal of Food Science and Technology
1988 Volume.20 No. 3 p.371 ~ p.379
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Study on the Temperature Adaptation of Contractile Myofibrillar Proteins from Fish Species
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Abstract
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To investigate on the biochemical characteristics of myofibrillar proteins between cold(pollack, salmon) and warm current fish (yellow corbina, shark), myofibrils and actomyosin were prepared, and their biological activities, effect of temperature on the myofibrillar ATPase activities and SDS-polyacrylamide gel electrophoretic patterns of myofibrils were compared. SDS-polyacrylamide gel electrophoretic analysis showed that electrophoretic patterns of myofibril vary from fish to fish. Difference in KCl concentration dependency of myofibrillar ATPase activities and ATPase activity- pH curve were found among fish species. Myofibrillar proteins from cold current fish showed higher specific activity at low temperature (5℃-10℃) than those from warm current fish.
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