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Phenolic Compounds from Bark of Juglans mandshurica  

Kim, Jin-Kyu (Dept. of Wood Science & Engineering, College of Forest Science, Kanwon National University)
Si, Chuan-Ling (Tianjin Key laboratory of Pulp & Paper, Tianjin University of Science & Technology)
Bae, Young-Soo (Dept. of Wood Science & Engineering, College of Forest Science, Kanwon National University)
Publication Information
Journal of the Korean Wood Science and Technology / v.34, no.6, 2006 , pp. 51-60 More about this Journal
Abstract
Juglans mandshurica barks were collected, extracted with acetone-$H_2O$ (7:3, v/v), fractionated with n -hexane, $CH_2Cl_2$, and EtOAc, and freeze dried to give some dark brown powder. The EtOA cand $H_2O$ soluble fractions were chromatographe d on a Sephadex LH-20 column using $H_2O$-MeOH and EtOH-hexane mixture as eluents. Spectrometric analysis such as NMR and MS, including TLC,were performed to characterize the structures of the isolated compounds. From the EtOAc and $H_2O$ soluble fractions, three flavanols (1~3), three flavonols (4~6) and five flavonol glycosides (7~11) were isolated and elucidated.
Keywords
phenolic compounds; flavonoid glycosides; Juglans mandshurica; NMR; Sephadex LH-20;
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Times Cited By KSCI : 2  (Citation Analysis)
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