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KMID : 0616120160470040352
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Korean Journal of Pharmacognosy
2016 Volume.47 No. 4 p.352 ~ p.359
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Changes in Ginsenosides Composition of Ginseng Leaf and Stem after an Ultrasonication Process
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Nam Yun-Min
Shin Ho-June
Yang Byung-Wook
Park Jong-Dae
Cho Soon-Hyun
Kim Hyoung-Chun
Ko Sung-Kwon
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Abstract
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The purpose of this study is to develop a new preparation process of ginseng leaf and stem extracts having high concentrations of ginsenoside Rg2, Rg3, Rg5, Rh1, a special component of red and black ginseng. Chemical transformation from ginseng saponin glycosides to prosapogenin was analyzed by the HPLC. Extracts of ginseng (Panax ginseng) leaf and stem were processed under several treatment conditions including ultrasonication treatments. The content of total saponin reached their heights at 17 hr (UGL-17) of ultrasonication treatment, followed by 16 hr (UGL-16) and 7 hr (UGL-7) of ultra-sonication treatment at 100℃. UGL-17 findings show that the ginseng leaf and stem that had been processed with ultra-sonication for 17 hours peaked in the level of Rg2, Rg3 and Rh1. In addition, UGL-16 contained ginsenoside Rg5 at high concentrations. It is thought that such results provide basic information in preparing ginseng leaf and stem extracts with func-tionality enhanced.
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KEYWORD
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Ginseng, Leaf, Ultrasonication, Ginsenoside Rg2, Rg3, Rh1
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