Seasonal changes in lipid components in meat and gonads of Japanese sandfish Arctoscopus japonicus caught in Akita offshore

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  • 秋田県沿岸海域で漁獲されたハタハタ　Ａｒｃｔｏｓｃｏｐｕｓ　ｊａｐｏｎｉｃｕｓ　の肉および生殖巣中の脂質成分の季節的変動
  • アキタケン エンガン カイイキ デ ギョカクサレタ ハタハタ Arctoscopus japonicus ノ ニク オヨビ セイショクソウチュウ ノ シシツ セイブン ノ キセツテキ ヘンドウ

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  Seasonal changes in lipid components in meat and gonads of Japanese sandfish Arctoscopus japonicus caught in Akita offshore were investigated. The moisture, crude lipid contents and fatty acid composition were analyzed. The crude lipid levels in meat were maximum in September, and were low in December. Significant differences of fatty acid composition of meat were not found. The gonad weight and crude lipid increased with sexual maturing, particularly in ovaries, but almoat no changes in crude lipid content and fatty acid composition of gonads were found. These results suggested that these changes were related to diet and sexual maturity. As foods, these results suggested that the meat in September and ovaries in December are delicious. Regarding food processing, the meat could be used as a material of enkanhin and surimi, and ovaries could be used as a material of fish egg products.<br>

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