Process for isolating genistin from mixtures of soy isoflavones
US7084263B2 · kind B2 · utility
0Cited by
11References
22Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 26, 2003 |
| Grant date | Aug 1, 2006 |
| Priority date | — |
| Expiry date | Mar 26, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07H17/07
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for enriching the relative concentration of genistin from a mixture of isoflavones is described. In accordance with one aspect of the invention, the process comprises providing a material containing a mixture of isoflavones, extracting the material with an aqueous organic solvent solution, adding calcium oxide or calcium hydroxide to the extract to form calcium-isoflavone complexes and separating precipitated calcium-isoflavone complexes from the extract. The precipitated calcium-isoflavone complexes contain a higher concentration of genistin complexes than daidzin and glycitin complexes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.