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KMID : 0903520090520010040
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
2009 Volume.52 No. 1 p.40 ~ p.44
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Isolation of Oleanane Triterpenes and trans-Resveratrol from the Root of Peanut (Arachis hypogaea)
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Lee Yu-Young
Kwon Soon-Ho
Kim Ho-Jin
Park Hyo-Jun
Yang Eun-Ju
Kim Sung-Kook
Yoon Young-Hwan
Kim Chung-Guk
Park Jong-Wook
Song Kyung-Sik
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Abstract
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The methanolic extract of peanut root was consecutively partitioned with dichloromethane, ethyl acetate (EtOAc), and n-butanol. Three compounds were isolated from the EtOAc-soluble fraction by the repeated silica gel column chromatography. These compounds were identified as sophoradiol, soyasapogenol B, and trans-resveratrol based on 1H- and 13C-NMR data. Sophoradiol and soyasapogenol B were isolated from the peanut for the first time. The trans-resveratrol content of the peanut root was 1.7 mg/g dry weight, which is more than 1,000 times higher than that of peanut.
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KEYWORD
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Arachis hypogaea, peanut root, soyasapogenol B, trans-resveratrol, sophoradiol
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