Biochemical properties of actomyosin from frozen stored mantles of squid (Illex argentinus) at different sexual maturation stages

被引:18
|
作者
Paredi, ME [1 ]
Crupkin, M [1 ]
机构
[1] INTI,CITEP,CTR INVEST TECNOL PESQUERA,RA-7600 MAR DEL PLATA,ARGENTINA
关键词
myofibrillar proteins; biochemical properties; frozen storage; squid mantle;
D O I
10.1021/jf960776c
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Mantles of squid at different sexual maturation stages were frozen and stored at -30 degrees C. Similar biochemical properties of actomyosin from unfrozen mantles of both immature and mature squid were found. A decrease in extractability, reduced viscosity, and Mg2+-ATPase activity of actomyosin was observed during frozen storage. The decrease in the biochemical properties of actomyosin was independent of the sexual maturation stage of the specimens. The relative percentages of myosin and actin in actomyosin from unfrozen mantles of immature squid were significantly different from those of actomyosin of mature squid. Myosin significantly decreased (p < 0.01) in frozen stored samples.
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页码:1629 / 1632
页数:4
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