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Molecules 2015, 20(3), 4238-4253; doi:10.3390/molecules20034238

A Novel and Effective Chromatographic Approach to the Separation of Isoflavone Derivatives from Pueraria lobata

1
Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
2
College of Pharmacy, Jiang Xi University of Traditional Chinese Medicine, Nanchang 330006, China
*
Author to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 24 November 2014 / Revised: 13 February 2015 / Accepted: 16 February 2015 / Published: 5 March 2015
(This article belongs to the Section Natural Products)
View Full-Text   |   Download PDF [2043 KB, uploaded 5 March 2015]   |  

Abstract

A novel and effective chromatographic approach to the separation and purification of isoflavone compounds from Pueraria lobata is described. The method is based on flash chromatography (FC), coupled to preparative high performance liquid chromatography (prep-HPLC) via a six-way valve. The FC step comprised tandem reversed phase columns, pre-packed with MCI gel (Mitsubishi Chemical Corp., Tokyo, Japan) and C18 (Fuji Silysia Chemical Ltd, Osaka, Japan) resin, respectively, and was designed to separate a crude Pueraria lobata extract into several preliminary fractions. Fractions containing the target compounds were then directly injected via the six-way valve into prep-HPLC columns, without further treatment, for final isolation and purification. Nine isoflavonoids were successfully isolated, three through an online mode and the other six through an offline mode. The purities of all compounds exceeded 95.0%, as determined by HPLC with an UV-vis photodiode array detector. The convenience, low solvent consumption, and time-saving advantages of this method offer an attractive and promising approach to the isolation of natural products. View Full-Text
Keywords: flash chromatography; preparative high performance liquid chromatography; online mode separation; offline mode separation; Pueraria lobata flash chromatography; preparative high performance liquid chromatography; online mode separation; offline mode separation; Pueraria lobata
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Fu, J.; Jing, W.; Wang, W.; Chen, S.; Zhang, J.; Liu, A. A Novel and Effective Chromatographic Approach to the Separation of Isoflavone Derivatives from Pueraria lobata. Molecules 2015, 20, 4238-4253.

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