| 摘要 |
The present invention provides a method of extracting ginsenoside Rg<SUB>2</SUB>, which is applied to mass production. The method of the present invention employs gradient salting-out instead of conventional silica gel chromatography, and therefore enables convenient performance and mass production of ginsenoside Rg<SUB>2</SUB>. Provided are also a pharmaceutical composition comprising ginsenoside Rg<SUB>2 </SUB>as an active ingredient, and prophylactic and therapeutic agents for preventing and treating dementia, depression, peripheral circulation disorder and related diseases, utilizing the pharmaceutical composition.
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