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Abstract
In this study, supercritical fluid extraction (SFE) was used to extract essential oil from Acorus tatarinowii Schott under the pressure of 25 MPa and temperature of 35°C. Two (E)‐ and (Z)‐diastereomers of α‐asarone and β‐asarone were separated and purified by high‐speed counter‐current chromatography (HSCCC) with a two‐phase solvent system composed of n‐hexane–ethyl acetate–methanol–water (1:0.2:1:0.3, v/v). The separation yielded a total of 39 mg of α‐asarone and 463 mg of β‐asarone from 1.0 g of essential oil in one‐step separation with the purity of 98.9 and 99.1%, respectively, as determined by HPLC. The chemical structures of these compounds were identified by EI‐MS, 1H‐, and 13C‐NMR.
| Authors: | Wang, Daijie; Geng, Yanling; Fang, Lei; Shu, Xikai; Liu, Jianhua; Wang, Xiao; Huang, Luqi | |
| Journal: | Journal of Separation Science | |
| Volume: | 34 | |
| Issue: | 23 | |
| Year: | 2011 | |
| Pages: | 3339 | |
| DOI: | 10.1002/jssc.201100573 | |
| Publication date: | 01-12-2011 |
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