PRODUCTION OF FINELY DISPERSED CAROTENOID OR RETINOID SLURRY, THE CAROTENOID OR RETINOID SLURRY AND COLORING OF FOOD AND FEED

摘要

PROBLEM TO BE SOLVED: To produce a finely dispersed and physiologically permissible carotenoid or retinoid slurry, having a long preservation stability and usable for coloring a food, in a mild condition by mixing a carotenoid or a retinoid with an aqueous medium in the presence of an emulsifier. SOLUTION: A carotenoid or a retinoid is dissolved in a volatile and water miscible organic solvent at 50-250 deg.C optionally under an elevated pressure within 10sec and thereafter the resultant solution is immediately mixed with an aqueous medium at 0-90 deg.C in the absence of a protecting colloid and in the presence of at least one physiologically permissible emulsifier to form the objective finely dispersed carotenoid or retinoid slurry. Moreover, preferably, any of a lecithin, a mono-, di- or triglyceride, an (acetylated) polycarboxylic acid or an ascorbyl palmitate is used as the emulsifier and the carotenoid or retinoid forms into particles having 1m particle diameter in the medium containing water in the objective slurry.