Process for preparing a partial extract containing the volatile in steam components and further lipophilic components of medical plants and/or spice plants
US5176913A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1989 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Jun 23, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23L27/11
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A partial extract containing the volatile in steam components and further lipophilic components of medical plants and/or spice plants or parts thereof, which may be charged in fresh or dried state, is obtained by PA1 a) mixing said plants or parts thereof with at least one organic solvent and extracting in usual manner, then either PA1 b) 1) adding to this extraction mixture at least one drying agent, in order to take away the water from the organic phase, and then separating the dried organic phase from the vegetable solid matter and from the drying agent, or PA1 b) 2) separating the vegetable solid matter from the organic phase, then adding to this organic phase at least one drying agent, in order to take away the water, and then separating the dried organic phase from the drying agent, and PA1 c) distilling the organic solvent(s), and recovering in this way a lipophilic concentrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.