Patent ID: 6296877
Filing Date: 2001-10-02
Classification: A23K,A23L,A61K,C07C,C09B

Abstract:
A process for preparing a stable aqueous dispersion, or a stable water-dispersible dry powder, of xanthophylls, which comprisesa) preparing a molecularly dispersed solution of at least one xanthophyll, optionally an emulsifier and, optionally an edible oil and/or an edible oil, in a water-miscible organic solvent, or a mixture of water and a water-miscible organic solvent, at above 30.degree. C.,b) mixing this solution with an aqueous solution of a mixture of protective colloids,b.sub.1) in which the mixture comprises at least one low-molecular-weight protective colloid component and at least one high-molecular-weight protective colloid component whose mean molecular weights differ by at least 10,000,b.sub.2) the solvent component being transferred to the aqueous phase and the hydrophobic phase of the xanthophyll being formed as an a nodisperse phasec) and, optionally, preparing a water-dispersible dry powder by freeing the resulting dispersion from the solvent and the water and drying it, optionally in the presence of a coating material.