Observation of Characteristic Muscle Structure Related to Delay in Red Sea-Bream Rigor Mortis by Spinal Cord Destruction.

概要

論文の詳細を見る
In stressed and unstressed fish muscles, the I-band disappeared and the M-and Z-lines became dense at 3 and 10h postmortem, respectively. In spinal cord destroyed fish muscle, the I-band disappeared at 24h, but the M-and Z-lines remained a light color. This state remained unchanged till 48h. In stressed fish muscle, the interfibrillar space was detected immediately afterdeath, and the space increased as the postmortem time elapsed. In unstressed fish muscle, the space began to increase at 10h. In spinal cord destroyed fish muscle, the slight space appeared in only some cases at 24h, and in all cases at 48h. The distinct space detected in the muscle of stressed fish immediately after death was due to the generation of tension. The increased space in stressed fish muscle at 3h and in unstressed fish muscle at 10h was due to both the peak tension and the low muscle pH. The spinal cord destroyed fish muscle which showed the slight space at 48 h was not weakened by the presently receiving tension nor the experienced peak tension. The lack of proteolytic degradation with higher muscle pH was related to the less structure weakening in this muscle.
社団法人日本水産学会の論文