EXTRACTION OF CAROTENOPROTEINS FROM CRUSTACEAN WASTES

摘要

A process is provided for the extraction of carotenoproteins from crustacean wastes. The process comprises the steps of (a) homogenizing the crustacean waste in water to form a homogenizate; (b) treating the homogenizate with at least 0.1% w/w based on the crustacean waste of a proteolyte enzyme selected from the group consisting of animal-derived trypsin and a bacterial protease, at a temperature of 0.degree.C to 50.degree.C for from 1 to 24 hours; and (c) separating an aqueous solution of carotenoproteins therefrom, the carotenoproteins being substantially free of chitin and ash. Such carotenoproteins may be used as a tissue colorant feed supplement.