Method of preparing an extract potent in anti-inflammation and anti-platelet aggregation from Zingiber officinale and pharmaceutical compositions containing said extract
US6274177A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2000 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Aug 26, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of preparing an extract from Zingiber officinale, which is potent in anti-inflammation and anti-platelet aggregation, includes the following steps: a) preparing a crude liquid from rhizomes of ginger by extraction with an organic solvent or by distillation with steam; b) introducing the crude liquid to a reverse phase chromatography column, and eluting the column with water, a first eluent and a second eluent having a polarity weaker than that of the first eluent but stronger than that of chloroform, so that a first eluate resulting from elution of the first eluent and a second eluate resulting from elution of the second eluent are obtained; c) removing the first eluent from the first eluate by evaporation, so that a first concentrated eluate is obtained and is able to used as the potent extract; and d) removing the second eluent from the second eluate by evaporation, so that a second concentrated eluate is obtained and is able to used as the potent extract.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.