Process for preparing grapeseed extracts enriched in procyanidol oligomers
US5484594A · kind A · utility
32Cited by
2References
8Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 23, 1992 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Sep 23, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K36/87
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An extract enriched in procyanidol oligomers almost free from monomers is obtained by subjecting a crude vegetable extract, for instance from Vitis vinifera, to ultrafiltration on membranes of cut-off from 3,000 to 600, or to a selective extraction with ethers, or esters or mixtures of ethyl acetate and aromatic hydrocarbons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.