Process for producing high purity isoflavones
US7524526B2 · kind B2 · utility
0Cited by
13References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2003 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Apr 9, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D311/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the production of a high purity isoflavone composition is disclosed. The process involves subjecting plant material to a primary chromatographic step to obtain an isoflavone enriched fraction and subjecting the isoflavone enriched fraction to a secondary chromatographic step. Also disclosed is a process that involves passing the plant material through an ultrafiltration membrane which has a molecular weight cut-off range that produces a plant material permeate prior to subjecting the plant material permeate to primary and secondary chromatographic steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.