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Extraction of paeonol from Jisheng Shenqi Wan using supercritical fluid extraction

โœ Scribed by Ben Liu; Yiling Chang; Hailiang Jiang; Bo Shen

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
132 KB
Volume
21
Category
Article
ISSN
0269-3879

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โœฆ Synopsis

Abstract

Supercritical carbon dioxide with or without methanol and 95% ethanol modifiers was used to extract paeonol from the pills of Jisheng Shenqi Wan and highโ€performance liquid chromatography (HPLC) was used to analyze the extract. The effect of temperature and pressure on the yield of paeonol was tested. The results show that the recovery of paeonol was improved by adding a polar modifier, such as methanol and 95% ethanol in supercritical fluid. The yield obtained after 120 min extraction with 95% ethanol modifiedโ€supercritical carbon dioxide was the highest (1.51, w/w at 60C and 400 bar), while that obtained with supercritical carbon dioxide only at 40C was the lowest from 0.67 to 0.83 over a range of 200โ€“600 bar. Copyright ยฉ 2006 John Wiley & Sons, Ltd.

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