1Nagasaki Prefectural Institute of Fisheries, Taira, Nagasaki 851-2213, 2Laboratory of Fishery Nutritional Science, Graduate School of Science and Technology, Nagasaki University, Bunkyo, Nagasaki 852-8521, Japan
The effect of different storage temperatures (iced, 5, 10, 15°C) on post-mortem changes in the mantle muscle of the Oval squid Sepioteuthis lessoniana were investigated during 24 h period. Squid muscle samples were analyzed for ATP related compounds, glycogen concentrations, pH and L* values. Results showed a slower decrease of ATP and glycogen in samples stored at 10°C when compared to samples stored on ice, 5°C and 15°C. As for the pH, no remarkable change was observed at each storage temperatures. When the L* value increased higher than 50, the muscle became opaque. The increase of opaqueness at 10°C storage was the slowest of all storage temperatures.