Process for the isolation and purification of isoflavones
US5679806A · kind A · utility
53Cited by
0References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1995 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Feb 24, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D311/40
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the isolation and purification of isoflavones from a number of different biomass sources. More particularly, the present invention relates to a three-step process whereby a biomass containing isoflavones with a solvent thereby forming an extract that is subsequently fractionated using a reverse phase matrix in combination with a step gradient elution, wherein the resulting fractions eluted from the column contain specific isoflavones that are later crystallized. The purified isoflavone glycosides may then be hydrolyzed to their respective aglycone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.