Analysis of Organic Acids in Ginseng

In order to provide data of the contents of organic acids in ginseng, the analysis of organic acids was performed. The dried ginseng was taken as the test sample. The method for organic acid analysis was established based on high performance liquid chromatography combined with the ultraviolet detector (HPLC-UV). The standard curves of 7 organic acids had been established with the correlation coefficients being all greater than 0.99. The established standard curves were used to calculate the contents of organic acids in each ginseng sample. For the ginseng grown in the same area, there was an overall trend that the content of organic acid in 5-year-old ginseng was higher than that in 4-year-old ginseng. For the ginseng collected from various areas, the contents of organic acids were different. In short, the distribution of 7 organic acids in 45 samples was different but lacking regularity.