Analysis of Ginsenosides in Different Parts of Panax ginseng by Age

Abstract

Several researchers have reported changes in the ginsenoside content of Panax ginseng during its cultivation period, but their results were not consistent. This may be explained in part by root diameter or localization of ginsenosides in the main root. In the present study, the ginsenoside content in the periderm and inner part of the main root were analyzed and compared between different ages. The results showed higher ginsenoside content in the periderm than in the inner part of the main root and the compositions of ginsenosides were different between these parts. Ginsenoside content was the highest in 1-year-old root and lowest in 2-year-old root. In 3- to 6-year-old roots, the ginsenoside content was almost the same.