Production of a product enriched in isoflavone values from natural sources
US6517840B1 · kind B1 · utility
4Cited by
18References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1999 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Dec 2, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D311/40
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for recovering isoflavone values from a biomass in which the isoflavone values are extracted from the biomass with a selective solvent for the isoflavone values, solid isoflavone values and the selective solvent are contacted with a nonsolvent or antisolvent for the isoflavone value which is miscible with the selective solvent. Optionally the nonsolvent or antisolvent is admixed with water during the contact with the solid isoflavone values to improve the purity and recovery of the solid isoflavone values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.