Processing for preparing flavorings and perfumes based on one or more carotenoids as starting material
AssigneeUnilever Patent Holdings B.V.
InventorsJohannes M. Van Dort, Johannes T. De Heij, Harry Renes
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Abstract
The invention provides a process for preparing flavouring and perfume complexes by converting one or more carotenoids like carotenes, xanthophylls etc. into a reaction product with organoleptic properties in the presence of a liquid solvent or liquid suspension medium containing an oxygen-containing gas at a temperature in the 20.degree.-250.degree. C. range under a pressure of not more than 400 bar. The obtained products--optionally after a complete or partial removal of the solvent or suspension medium--may be used for the direct or indirect perfuming and flavouring respectively of materials.
Claims13
Process for preparing flavouring and perfume complexes based on one or more carotenoids as starting material, comprising auto-oxidizing one or more carotenoids into a reaction product with organoleptic properties in the presence of a liquid solvent or suspension medium containing an oxygen-containing gas comprising an amount of .gtoreq.5 mol O.sub.2 per mol carotenoid at a temperature in the 20.degree.-250.degree. C. range and under a pressure of 2 to 400 bar, the temperature and pressure being such that the solvent or suspension medium is maintained in the liquid phase.
Dependencies are inferred from the claim text.