Process for extracting triterpene glycosides from botanical sources
US6124442A · kind A · utility
Inventors
Key dates
| Filing date | Mar 24, 1999 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Mar 24, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07H15/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The process includes obtaining a liquid extract from a fresh plant source material and mixing the extract with a solution saturated with at least one element having an oxidation number of one or two or combinations thereof. The resulting mixture provides for a solid precipitate material and a liquid portion containing the triterpene glycosides of which is then passed through a macroporous resin. The resin is then washed with an alcohol to obtain a solution thereof containing the triterpene glycosides. The solution is condensed to provide a purified liquid triterpene glycoside solution and then a drying step is performed to obtain a dry composition containing the triterpene glycosides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.