摘要
以肌动球蛋白的盐溶性、肌原纤维蛋白 ATPase活性以及肌原纤维蛋白的巯基含量为指标 ,研究了不同冻藏温度 (- 10℃ ,- 2 0℃ ,- 30℃ ,- 40℃ )对鲈鱼肌原纤维蛋白变性的影响。结果表明 ,在不同温度下冻藏时 ,鲈鱼肌动球蛋白的盐溶性、肌原纤维蛋白的 ATPase活性以及巯基含量随着冻藏时间的延长 ,均呈下降趋势。且鲈鱼蛋白质的变性速度在不同冻藏温度下的差异是极其显著的 (P<0 .0 1)。冻藏温度越低 ,变性越缓慢。
The denaturation of myofibrillar protein of weever(Lateolabrax japonicus) during frozen storage at different temperatures(-10℃,-20℃,-30℃ and -40℃) was studied on the basis of measuring the solubility of actomyosin,the ATPase activities and -SH content of myofibrillar protein. The results indicate that the solubility of actomyosin, the ATPase activities and -SH content of myofibrillar protein decrease during frozen storage. The temperature of frozen storage can significantly influence the rate of denaturation of myofibrillar protein (P<0.01). The lower the frozen storage temperature is , the slower the denaturation rate of protein is.
出处
《青岛海洋大学学报（自然科学版）》
CSCD
北大核心
2003年第4期525-530,共6页
Journal of Ocean University of Qingdao
基金
山东省攻关课题项目 (0 0 3110 10 7)资助
