Effect of post-rigor fish storage on ice on physicochemical properties of actomyosin

✍ Scribed by Marcos Crupkin; Carlos A. Barassi; M. José Argüello; E. Raúl Trucco

• Publisher: John Wiley and Sons
• Year: 1982
• Tongue: English
• Weight: 462 KB
• Volume: 33
• Category: Article
• ISSN: 0022-5142
• DOI: 10.1002/jsfa.2740331110

✦ Synopsis

Abstract

Actomyosin was purified from post‐rigor fish stored for various times on ice and was characterised by Mg^2+^‐ATPase activity, ATP‐sensitivity and SDS‐polyacrylamide gel electrophoretic patterns. It had a similar reduced viscosity to that of the myofibrillar extract and the viscosity of both extracts fell in a similar manner as the time of storage of the whole fish on ice increased. No changes in the extractability, the Mg^2+^‐ATPase activity or the electrophoretic pattern of actomyosin were detected when extracted from fish muscle held for up to 11 days in ice.