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Isolation and determination of ginsenosides in American ginseng leaves and root extracts by LC-MS

Ginseng saponins (ginsenosides) were extracted from the root and leaves of locally cultivated American ginseng (Panax quinquefolium L.). For the isolation of compounds from plant samples three different extraction methods were utilized: accelerated solvent extraction, the ultrasound-assisted solvent...

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Bibliographic Details
Published in:Analytical and bioanalytical chemistry 2005-12, Vol.383 (7-8), p.1098-1105
Main Authors: Ligor, T, Ludwiczuk, A, Wolski, T, Buszewski, B
Format: Article
Language:English
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Summary:Ginseng saponins (ginsenosides) were extracted from the root and leaves of locally cultivated American ginseng (Panax quinquefolium L.). For the isolation of compounds from plant samples three different extraction methods were utilized: accelerated solvent extraction, the ultrasound-assisted solvent extraction and mechanical shaking assisted solvent extraction. The separation of compounds was achieved with a water-acetonitrile gradient system using a C18 reversed-phase column. Target compounds were identified in MS(2) and MS(3) experiments. The relative distribution of these ginsenosides in each root and leaf extract was established. The limit of detection of the method was less than 30 ng/ml. Recovery of ginseng saponins in spiked samples exceeded 80%, while the relative standard deviation ranged from 7.1 to 9.1%. The total concentrations of ginsenosides were 41 and 13 mg/g in root and leaves.
ISSN:1618-2642
1618-2650
DOI:10.1007/s00216-005-0120-8