PROCESS FOR PRODUCING GELATIN FROM FISH SKIN BY OPTIMISATION OF THE EXTRACTION CONDITIONS
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May 28, 2020
app pub date -
Jul 26, 2018
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Jul 26, 2017
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Abstract
A process for obtaining fish gelatin characterized because it comprises: (a) cleaning of fish skins; (b) washing of skins with water; (c) treating with diluted alkali solution with constant agitation; (d) washing of skins with water until the wash water is in a pH range between 6.8 and 7.2; (e) treating with diluted organic acid solution with constant agitation; (f) washing of skins with water until the wash water is in a pH range between 6.8 and 7.2 and subsequent runoff; (g) extracting gelatin by mixing the skins in an organic acid solution with a concentration of 0.2 to 0.3 weight percent by volume at a temperature of 55 to 65° C. and for 260 to 340 minutes; (h) filtering to remove skin debris and impurities; (i) drying; and (j) grinding.
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