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EXTRACTION OF GINSENOSIDES FROM AMERICAN GINSENG (PANAX QUINQUEFOLIUM L.) ROOT WITH DIFFERENT EXTRACTION METHODS AND CHROMATOGRAPHIC ANALYSIS OF THE EXTRACTS

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:   No Citation available.
Authors:   Jianming Dai, G.S.V Raghavan, Varoujan Yaylayan, Michael Ngadi, Valérie Orsat
Keywords:   Microwave-assisted extraction; American ginseng; Ginsenosides; Extraction methods; Chromatographic analysis

Microwave-assisted extraction (MAE) was compared with room temperature extraction (RTE) and reflux temperature extraction (RFX) on the extraction of ginsenosides from fresh American ginseng root. Extraction times of 5, 10, 30 and 60 min were investigated. An 86 - 300% increase in extraction rate was observed by raised temperature. The use of microwave energy instead of hotplate heating in the extraction resulted in a 31 - 96% increase in extraction rate with the exception of ginsenoside Re. Visual analysis of the chromatographs of extracts helps choose conditions for selectively obtaining specific ginsenosides enriched extracts.

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