Fish solubles - condensed fish solubles

Japanese: フィッシュソリュブル - ふぃっしゅそりゅぶる（英語表記）condenced fish solubles

Livestock feed made from concentrated fresh liquids obtained from fish. Depending on the raw material, solubles can be divided into fish juice, innards, and meat solubles. Fish juice solubles are made by centrifuging the cooking liquid (cooker drain) and pressed liquid that are by-products in the fish meal manufacturing process, removing solids and fats, and concentrating them, and they account for more than half of the fish solubles produced in Japan. Innards solubles are made by grinding up fish innards, breaking down and liquefying the proteins through autolysis or the addition of enzymes, and then removing solids and fats and concentrating them, and they are the second most produced after fish juice solubles.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

魚類から得られる新鮮な液状物を濃縮した家畜飼料。原料により魚汁系，内臓系，肉質系の各ソリュブルに分けられる。魚汁系ソリュブルとはフィッシュミールの製造工程で副生する煮熟液(クッカードレイン)や圧搾液を遠心分離し，固形分と油脂を除き濃縮したもので，日本のフィッシュソリュブル生産量の過半を占める。内臓系ソリュブルとは魚類の内臓を磨細し，自己消化や酵素添加によりタンパク質を分解･液化させ，固形分と油脂を除き濃縮したもので，魚汁系ソリュブルについで生産量が多い。

出典　株式会社平凡社世界大百科事典第２版について　情報

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