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US 10,307,453 B2Granted
Method for extracting stilbene compounds
AssigneeKpc Pharmaceuticals, Inc.
InventorsYunqi Gong, Jinxin Chen, Fang Fang
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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.
Claims9
A method for extracting stilbenoid compounds, comprising:
- (a) providing a medicinal material rich in stilbenoid compounds as a raw material,
- (b) extracting the medicinal material with a flash extractor one or more times,
- (c) filtering the extract made in step (b) after each extraction,
- (d) combining the filtrates when there are two or more filtrates and
- (e) drying the filtrate or combined filtrates to concentrate the stilbenoid compounds.
2 more elements
Dependencies are inferred from the claim text.