The Influence of Pink Muscle Fiber in Ordinary Muscle of Fishes on the Rigor Mortis Progress

Comparison of Interposition Ratios of Pink Muscle Fiber in Dorsal Ordinary Muscle among Various Marine Fishes.

“…1 and 2). Findings similar to this have been reported in the grey mullet by Carpene et al (1982), the cod by Korneliussen et al (1978), the roach by Kilarski (1990), and a number of fish species by both Mosse & Hudson (1977), and our own previous studies (Jabarsyah et al, 1999a(Jabarsyah et al, , 1999b. The present study clarified that the number and area percentages of pink muscle fibers against all kinds of muscle fiber types in the dorsal ordinary muscle were considerably different among fish species, and fell within ranges of from 12.90% to 56.53% and from 2.22% to 53.68%, respectively (Fig.…”

“…Korneliussen et al (1978) and Walesby and Johnston (1980) reported that a boundary region between the layers of intermediate muscle and ordinary muscle was not remarkable in the cod Gadus morhua, and that the Antarctic toleost Notothenia rosii had no pink muscle fiber in its locomotory muscles. In our previous study, we reported that there were not only white muscle fibers but also pink muscle fibers in the dorsal ordinary muscle of many fish species, and that the fiber type in this muscle was differed remarkably among species, between wild and cultured fish of the same species, and among regions along the length of the body and toward the neural spine (Jabarsyah et al, 1999a).We also reported that the presence of pink muscle fiber in the ordinary muscle raised the maximum level in rigor mortis in various species (Jabarsyah et al, 1999b), and accelerated the temporal change of K-value (one of the freshness indices) in the carp (Yada et al, 2000). However, the influence of muscle fiber type on the temporal change of K-value, especially by the presence or absence of pink muscle fiber in the ordinary muscle has not yet been examined thoroughly.…”

“…We also reported that the presence of pink muscle fiber in the ordinary muscle raised the maximum level in rigor mortis in various species (Jabarsyah et al, 1999b), and accelerated the temporal change of K-value (one of the freshness indices) in the carp (Yada et al, 2000). However, the influence of muscle fiber type on the temporal change of K-value, especially by the presence or absence of pink muscle fiber in the ordinary muscle has not yet been examined thoroughly.…”

Relationship between the characteristics of rigor‐mortis‐related actomyosin and muscle fiber types in the ordinary muscle of various fishes

“…Therefore, in any case, the muscle fiber types in the dorsal ordinary muscle of various fishes were discriminated by the acid and alkaline stabilities of actomyosin ATPase . We also reported that the organization of muscle fiber types in dorsal ordinary muscle were remarkably different between wild and cultured fish, among specimens of the same fish, and among parts along the body length and at varying depths . On the other hand, we previously reported that the interposition of pink muscle fibers in the dorsal ordinary muscle contributes to the acceleration of post‐mortem tenderization in cultured carp Cyprinus carpio .…”

“…On the other hand, we previously reported that the interposition of pink muscle fibers in the dorsal ordinary muscle contributes to the acceleration of post‐mortem tenderization in cultured carp Cyprinus carpio . Additionally, the maximum level reached in the rigor mortis progress was shown to be higher in fishes that have pink muscle fibers in the dorsal ordinary muscle than in fishes that have no pink muscle fibers . Accordingly, it is considered that differences in the characteristics of actomyosin among fish species might have been caused by the difference in the organization of muscle fiber types in the dorsal ordinary muscle.…”