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자료유형
학술저널
저자정보
Jin-Gyeong Cho (Kyung Hee University) Seo-Ji In (Kyung Hee University) Ye-Jin Jung (Kyung Hee University) Byeong-Ju Cha (Kyung Hee University) Dae-Young Lee (Rural Development Administration) Yong-Bum Kim (Rural Development Administration) Myeonghun Yeom (Amorepacific Corporation Research and Development Center) Nam-In Baek (Kyung Hee University)
저널정보
고려인삼학회 Journal of Ginseng Research Journal of Ginseng Research Vol.38 No.2
발행연도
2014.4
수록면
116 - 122 (7page)

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초록· 키워드

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Ginseng roots were extracted with aqueous methanol, and extracts were suspended in water and extracted successively with ethyl acetate and n-butanol. Column chromatography using the n-butanol fraction yielded four purified triol ginseng saponins: the ginsenosides Re, Rf, Rg2, and 20-gluco-Rf. The physicochemical, spectroscopic, and chromatographic characteristics of the ginsenosides were measured and compared with reports from the literature. For spectroscopic analysis, two-dimensional nuclear magnetic resonance (NMR) methods such as ¹H-¹H correlation spectroscopy, nuclear Overhauser effect spectroscopy, heteronuclear single quantum correlation, and heteronuclear multiple bond connectivity were employed to identify exact peak assignments. Some peak assignments for previously published ¹Hand <SUP>13</SUP>C-NMR spectra were found to be inaccurate. This study reports the complete NMR assignment of 20-gluco-Rf for the first time.

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abstract
1. Introduction
2. Materials and methods
3. Results and discussion
References

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