Method for extracting stilbene compounds
US10307453B2 · kind B2 · utility
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Key dates
| Filing date | Dec 30, 2015 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Mar 9, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2236/331
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for extracting stilbene compounds comprises the following steps: grinding a medicinal material rich in stilbene compounds such as rheum officinale; extracting the medicinal material with a herbal flash extractor for one to four times, 5-20 minutes each time; filtering and combining filtrate and concentrating the filtrate to dryness; the proportion of the medicinal material to a solvent being 1 g: 10 ml-1 g:15 ml.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.