abstract |
RAW, GROUND, WHOLE OR DEBONED, FISH IS CONTACTED WITH AN ACIDIC AQUEOUS SOLUTION OF A CONDENSED INORGANIC PHOSPHATE, E.G., SODIUM HEXAMETAPHOSPHATE, TO INSOLUBILIZE THE PROTEIN FRACTIONS OF THE TISSUE COMPONENTS. THE INSOLUBILIZED PROTEIN MAY THEN BE WATER WASHED TO REMOVE OIL AND OTHER UNDESIRED TISSUE COMPONENTS. EITHER FISH MEAL, SUITABLE FOR ANIMAL FEED, FERTILIZER, ETC. OR HIGH PROTEIN CONCENTRATE, SUITABLE FOR HUMAN FOOD USE, IS RECOVERED. |