Effect of blood deposition phenomenon on α-actinin and meat quality changes of yellowtail <i>Seriola quinqueradiata</i> during storage

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  • JIANG TONG
    Graduate School of Fisheries and Environmental Sciences, Nagasaki University
  • YUAN PENGXIANG
    Graduate School of Fisheries and Environmental Sciences, Nagasaki University College of Food and Pharmacy, Zhejiang Ocean University
  • MIYAZAKI RIHO
    Nagasaki Prefectural Institute of Fisheries
  • HIRASAKA KATSUYA
    Graduate School of Fisheries and Environmental Sciences, Nagasaki University
  • HARA KENJI
    Faculty of Food and Nutrition, Kyushu Nutrition Welfare University
  • TACHIBANA KATSUYASU
    Graduate School of Fisheries and Environmental Sciences, Nagasaki University
  • TANIYAMA SHIGETO
    Graduate School of Fisheries and Environmental Sciences, Nagasaki University

Bibliographic Information

Other Title
  • 血液就下現象がブリ普通筋の保存中におけるα-アクチニンと肉質に及ぼす影響
  • ケツエキシュウカ ゲンショウ ガ ブリ フツウキン ノ ホゾン チュウ ニ オケル a-アクチニン ト ニクシツ ニ オヨボス エイキョウ

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Abstract

<p>　We examined the influence of blood deposition on the change in fish muscle quality of ordinary muscle (suffocation in air (SA): upper and under; spinal-cord destruction (SCD): upper and under) in yellowtail. The increasing ratio of K-value showed no significant difference between the upper-side and under-side of the SA or SCD group during storage at 10℃. Significantly higher cathepsin B-like activities could be observed in SA-under than in SA-upper at 4 and 24 h. In addition, higher degradation of α-actinin protein in SA-under than in SA-upper was confirmed by western-blotting. Transmission electron microscope observation showed significant Z-disk and sarcoplasmic reticulum degradation of the original structures in SA-under compared with SA-upper during storage. These results indicated that the blood deposition phenomenon from the upper-side to the under-side in ordinary muscle might be involved in the acceleration of deterioration of flesh during storage.</p>

Journal

  • NIPPON SUISAN GAKKAISHI

    NIPPON SUISAN GAKKAISHI 86 (1), 20-25, 2020-01-15

    The Japanese Society of Fisheries Science

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