Processes for extracting carotenoids and for preparing feed materials
US6818239B2 · kind B2 · utility
61Cited by
22References
16Claims
0Family size
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Key dates
| Filing date | Jun 17, 2002 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Nov 12, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B61/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A general process for the extraction of carotenoids from a carotenoid source such as a biomass, which may be various biomasses including the yeast Phaffia rhodozyma, comprises treating the carotenoid source at an elevated temperature with a solvent mixture comprising water, a hydrophobic carotenoid solvent such as vegetable oil and a water soluble co-solvent such as ethanol so as to extract the carotenoid source into the hydrophobic solvent. Benefits include (a) the ease of incorporation into the diet, (b) the increased bioavailability achieved and, (c) the ease of stabilization against oxidation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.