Study on ginsenosides in different parts and ages of Panax quinquefolius

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• 作者：Chenling Qu ; Yuping Bai ; Xiangqun Jin ; Yutang Wang ; Kun Zhang ; Jingyan You ; Hanqi Zhang
• 关键词：American ginseng ; Evaporative light scattering detection ; Ginsenosides ; High-performance liquid chromatography ; Microwave-assisted extraction
• 刊名：Food Chemistry
• 出版年：2009
• 出版时间：1 July 2009
• 年：2009
• 卷：115
• 期：1
• 页码：340-346
• 全文大小：196 K

文摘

The contents of 12 ginsenosides (Rg₁, Re, F₁₁, Rf, Rg₂, Rh₁, Rb₁, Rc, Rb₂, Rb₃, Rd, Rh₂) in different parts and ages of Panax quinquefolius L. (American ginseng) were quantified by high pressure microwave-assisted extraction (HPMAE) high-performance liquid chromatography coupled with evaporative light scattering detection (HPLC-ELSD). The analytical method was established and analytical performances were evaluated. The chemical marker of American ginseng F₁₁ was detected, and Rf which is the chemical marker of Asian ginseng was not found. Rare ginsenoside Rh₁, Rg₂ and Rh₂ were also studied in this experiment. The total contents of these 12 ginsenosides in the different parts of 5-year-old American ginseng follow this order: leaf > root-hair > rhizome > root > stem. Therefore, compared with the other parts of American ginseng, the leaf is a better available source of ginsenosides. The contents of ginsenosides in root and leaf also change with age.