Study on Gelatin Extraction by Crushing and Decompression Process of Fish Scales

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  • 魚鱗の破砕減圧処理によるゼラチン抽出に関する研究
  • ギョリン ノ ハサイ ゲンアツ ショリ ニヨル ゼラチン チュウシュツ ニ カンスル ケンキュウ

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Collagen is one of the proteins that compose the bones and skin of mammls and fish, and is sensitive to heating. Heatdenatured collagen, called gelatin, is also widely used as a raw material for pharmaceuticals, cosmetics, and foods. In this study, a new extraction method was developed to increase the efficiency of gelatin extraction from hard fish scales. When the fish scales were crushed for 2min and then pocessed under vacuum at 40℃ and-30 kPa in dilute hydrochloric acid, gelatin could be extacted in 64.8% yield. This results suggest an innovative method to extract gelatin from hard tissues such as fish scales with convenient and less acid.

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