Preparation method for extractive of jinxuan hemorrhoid washing powder botanicals
US9687516B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2012 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Jan 22, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2236/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A preparation method for extractive botanicals includes: (A) honeysuckle, schizonepeta, and purslane in a powder are mixed, ground, and passed through a mesh; the medicinal powder obtained from supercritical extraction is soaked in alcohol, then undergoes percolation extraction, and the percolate is collected; (B) the alcohol percolate is concentrated, left stand, and suction filtrated to obtain a filtrate; (C) the filtrate macroporously adsorbs to a resin column at a flow velocity, is then removed of impurity by water washing, and undergoes elution with alcohol to obtain an alcohol eluent; (D) alcohol is recovered from the eluent, the remaining liquid is concentrated, and the concentrated liquid is dried to obtain the extractive of botanicals. The total content of flavones, saponins, and organic acids exceeds 70%. The extractive has substantial anti-inflammatory and pain relieving effects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.