Preparation of finely divided, pulverulent carotenoid preparations
AssigneeBASF SE
InventorsDieter Horn, Hans-Juergen Quadbeck-Seeger, Peter Schaefer, Wolfgang Haehnlein
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Abstract
Finely divided, pulverulent carotenoid preparations in which the carotenoid essentially has a particle size of less than 0.5 micron are prepared by a process in which a carotenoid is dissolved in a volatile, water-miscible, organic solvent at from 50.degree. to 240.degree. C., under atmospheric or superatmospheric pressure, in less than 10 seconds, the carotenoid is precipitated in colloidal disperse form from the resulting molecular disperse solution by rapid mixing with milk at from 0.degree. to 50.degree. C., and the resulting dispersion is freed from the solvent and the dispersing medium in a conventional manner.
Claims4
A process for the preparation of a finely divided, pulverulent carotenoid preparation, in which the carotenoid essentially has a particle size of less than 0.5 micron, by dissolving a carotenoid in a volatile, water-miscible, organic solvent at from 50.degree. to 240.degree. C., under atmospheric or superatmospheric pressure, in less than 10 seconds, immediately precipitating the carotenoid in colloidal disperse form from the resulting molecular disperse solution by rapidly mixing with an aqueous dispersion of a colloid at from 0.degree. to 50.degree. C. and freeing the resulting dispersion from the solvent and the dispersing medium in a conventional manner, wherein the colloid used is milk or skimmed milk or an aqueous solution of dry milk.
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