Analysis of Ginsenosides in Ginseng

Abstract

Aiming to provide reference on illustrating the kinds and the contents of ginsenosides in ginseng, the analysis of ginsenosides was carried out. The dried ginseng was taken as test sample. The method of total ginsenosides of ginseng from different regions with different cultivation periods was determined by ultraviolet-spectrophotometry, and 19 ginsenosides were determined by high performance liquid chromatography combined with ultraviolet detectors (HPLC-UV). The standard curves of ginsenosides were established with the correlation coefficients being greater than 0.99, which were used to determine the contents of total ginsenosides and 19 monomeric ginsenosides in each sample, respectively. For the ginseng in same area, the ginsenoside content in 5-year-old ginseng was the highest, and the ginsenoside content in 4-year-old ginseng was obviously higher than the 4-year-old continuous cropping ginseng. For the ginseng from various areas, the contents of total and monomeric ginsenosides were different. This chapter further explored the relationships between the ginseng’s quality and the cultivation periods or producing regions. It is significant to ginseng’s quality control.