Method for preparing 20-O-β-D-glucopyranosyl-20(S)-protopanaxadiol (ginsenoside M1) by using sanqi leaves and stems
US7932057B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2007 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Mar 27, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P33/00
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The present invention provides a method for preparing 20-O-β-D-glucopyranosyl-20(S)-protopanaxadiol (Ginsenoside M1) by using Sanqis leaves and stems. The method of the invention includes the steps of: (a) provides powder of Sanqi leaves and stems; (b) provides a fungus for fermenting the Sanqi leaves and stems, wherein the fermentation temperature is ranged from 20-50° C., the fermentation humidity is ranged from 70-100%, the pH value is ranged from 4.0-6.0, and the fermentation period is ranged from 5-15 days; (c) extracts and collects the fermentation products; and (d) isolates 20-O-β-D-glucopyranosyl-20(S)-protopanaxadiol from the fermentation products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.