Process for the production of gelatin from fish skins

Details Process for the production of gelatin from fish skins Process for the production of gelatin from fish skins

A - Human Necessities

23

J

99/51

A23J 1/04 (2006.01) A23J 3/06 (2006.01)

Patent

CA 2006238

ABSTRACT A process for the production of gelatin from fish skins comprises the steps of: (a) cleaning the skins in order to remove therefrom substantially all superfluous material; (b) treating with dilute aqueous alkali; (c) washing with water until the washing water is substantially neutral; (d) treating with dilute aqueous mineral acid; (e) washing with water until the washing water is substantially neutral; (f) treating with dilute aqueous citric acid and/or another suitable organic acid; (g) washing with water until the washing water is substantially neutral; and (h) extracting with water at elevated temperatures not above about 55°C, the washed citric acid-treated skins. In practice, the present process employs much lower temperatures than known heretofore for the treatment steps, which results in a high quality product (e.g. absence of a fishy smell), compared with the prior art.

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