Abstract
High speed counter-current chromatography in semi-preparative scale was used to separate and purify ergosta-4,6,8(14),22-tetraen-3-one from Ganoderma atrum, a famous traditional Chinese medicine. A two-phase solvent system composed of a mixture of n-hexane–ethanol–water (6: 5: 1, v/v/v) was used and the separation conditions were optimized. In a typical run in less than 400 min, 100 mg of samples can be separated to yield 14 mg of ergosta-4,6,8(14),22-tetraen-3-one with 99.1% purity. The structure of this compound was elucidated by UV, EI-MS, 1H NMR and 13C NMR.
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Acknowledgments
The financial support for this study by Program for Changjiang Scholars and Innovative Research Team in University (No: IRT0540), and by Jiangxi Provincial Department of Science and Technology is gratefully acknowledged.
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Shen, M., Xie, M., Nie, S. et al. Separation and Identification of Ergosta-4,6,8(14),22-tetraen-3-one from Ganoderma atrum by High-Speed Counter-Current Chromatography and Spectroscopic Methods. Chroma 67, 999–1001 (2008). https://doi.org/10.1365/s10337-008-0616-4
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DOI: https://doi.org/10.1365/s10337-008-0616-4