Glycosides of the epigeal part of Panax ginseng

The qualitative and quantitative compositions of ginsensides in the epigeal part of ginseng cultivated in the Maritime Territory have been determined. The concentration of ginsenosides in the epigeal part of this plant is fairly high and depends on the growth site and seasonal conditions. A method of alkaline hydrolysis for obtaining ginsenoside Rg2 from Re is described. Under these conditions for cleaving the glycosidic bond in the ginsenosides no epimerization at C20 is observed.