養殖ヒラメとの比較による養殖ホシガレイの品質評価 Valuation of Cultured Spotted Halibut Verasper variegatus by Comparing with Cultured Plaice Paralichthys olivaceus
Cultured spotted halibut <i>Verasper variegatus</i> of which distribution will be expected to increase in the near future, was evaluated in several quality indices by comparing with cultured plaice <i>Paralichthys olivaceus</i>.<br>Spotted halibut had a low mortality rate during transportation. Rigor mortis which is utilized as an index for freshness and ATP consumption showed a slower process than plaice. Shear force of muscle showed over two times that of plaice. Collagen content was almost the same between the two fish muscles, but in the connective tissue which excluded the myocommata, the collagen content was significantly more than in plaice. No difference in the muscle structure according to the light microscopy suggested that the difference in the muscle texture would be influenced by the collagen of endomysium.<br>According to these results, spotted halibut is superior in many respects to plaice and would be expected to be a major cultured fish in the near future.
日本水産学会誌 64(6), 1027-1033, 1998-11-15