Patent ID: 6664300
Filing Date: 2003-12-16
Classification: C07C,Y10S

Abstract:
A process for producing a carotenoid emulsion which comprises heating a suspension of the carotenoid in a high boiling organic liquid having a boiling point of at least 150Â° C. (hereinafter referred to as carotenoid suspension), by passing the suspension through a conduit of from 0.1 to 50 mm inside diameter heated to a temperature in the range of from 120 to 700Â° C. for a residence time of 0.05 to 5 seconds or by mixing the suspension with a high boiling organic liquid having a bailing point of at least 150Â° C. heated to a temperature in the range of 120 to 500Â° C. for a time of from 0.05 to 10 seconds, to dissolve the carotenoid, and then immediately adding the resulting solution into an aqueous solution of an emulsifier to emulsify the solution, wherein the carotenoid suspension is heated at such a temperature that the carotenoid is not isomerized before it is heated to dissolve the carotenoid.