Qualitative and Quantitative Determination of Ten Major Saponins in Platycodi Radix by High Performance Liquid Chromatography with Evaporative Light Scattering Detection and Mass Spectrometry

Authors
Ha, Young Wan
Na, Yun Cheol
Seo, Jung Ju
Kim, Soo Na
Linhardt, Robert J.
Kim, Yeong Shik
ORCID
https://orcid.org/0000-0003-2219-5833
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Issue Date
2006-11-24
Keywords
Biology , Chemistry and chemical biology , Chemical and biological engineering , Biomedical engineering
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Full Citation
Qualitative and Quantitative Determination of Ten Major Saponins in Platycodi Radix by High Performance Liquid Chromatography with Evaporative Light Scattering Detection and Mass Spectrometry, Y. W. Ha, Y.-C. Na, J.-J. Seo, S.-N. Kim, R. J. Linhardt, Y. S. Kim, Journal of Chromatography A, 1135, 27-35, 2006.
Abstract
Saponins in Platycodi Radix (platycosides) exhibit potent biological activities in mammalian systems, including several beneficial effects such as anti-inflammatory, immunomodulatory and anti-obesity activities. In this study, we developed a new HPLC separation coupled with evaporative light scattering detector (ELSD) for the simultaneous quantitative determination of ten major saponins in Platycodi Radix. Simultaneous separation of these saponins was achieved on a C18 analytical column. The mobile phase consisted of a gradient of aqueous acetonitrile. The method was validated for linearity, precision, accuracy, limit of detection and quantification. Electrospray ionization mass spectrometry (ESI-MS) and liquid chromatography coupled with on-line mass spectrometry (LC-ESI MS/MS) were applied to identify platycosides in the purified fractions and in the crude extract. Under ESI-MS/MS conditions, the fragmentation patterns of [M-H]- ions exclusively show signals corresponding to cleavage of the glycosidic bonds, thus allowing a rapid identification of saponins in the crude extract of Platycodi Radix. The validated HPLC method provides a new basis of overall assessment on quality of Platycodi Radix, and ESI-MS/MS and LC-ESI MS/MS approaches offers analytical tools for a rapid screening of platycosides in the crude extract.
Description
Journal of Chromatography A, 1135, 27-35
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Department
The Linhardt Research Labs.
The Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS)
Publisher
Elsevier
Relationships
The Linhardt Research Labs Online Collection
Rensselaer Polytechnic Institute, Troy, NY
Journal of Chromatography A
https://harc.rpi.edu/
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A full text version is available in DSpace@RPI