Processing for preparing flavorings and perfumes based on one or more carotenoids as starting material
Patent 5084292 Issued on January 28, 1992. Estimated Expiration Date: 
May 25, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 25, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2959521 Flavor and fragrant compositions Process for the preparation of aromatic substances Patent #: 4351346 InventorsAssigneeApplicationNo. 528211 filed on 05/25/1990US Classes:426/533, Reaction flavor per se, or containing reaction flavor improver of unknown or undefined chemical constitution512/1, PERFUME COMPOSITIONS512/5, Animal or plant extract active ingredient512/8Ring containing active ingredientExaminersPrimary: Golian, JosephAttorney, Agent or FirmForeign Patent References
International ClassA23L 001/226Foreign Application Priority Data1989-05-25 NLAbstractThe 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°-250° 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.Other References
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