title: Isolation and purification of chemical constituents from the pericarp of Sophora japonica L. by chromatography on a 12% cross-linked agarose gel.
abstract: A chromatographic method using 12% cross-linked agarose gel Superose 12 as the separation medium was developed for isolation and purification of the chemical constituents from the pericarp of Sophora japonica L. The mobile phase used for the separation was 2% acetic acid and 7% acetic acid in gradient elution. As a result, eight compounds including four kinds of flavonoids and four kinds of isoflavonoids were obtained in a one-step separation. A straightforward explanation of the separation mechanism of flavonoids and isoflavonoids on Superose 12 is also given. The flavonoids and isoflavonoids are retained on Superose 12 by a combination of hydrogen bonding and hydrophobic interactions between the hydroxyl groups of aglycone and the residues of the cross-linking reagents used in the manufacture of Superose 12.
authors.affiliation: College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China. liurenmin@lcu.edu.cn
authors.forename: Renmin
authors.initials: R
authors.lastname: Liu
authors.forename: Yuanying
authors.initials: Y
authors.lastname: Qi
authors.forename: Ailing
authors.initials: A
authors.lastname: Sun
authors.forename: Hongyan
authors.initials: H
authors.lastname: Xie
mesh_terms: D002845:Chromatography / Q000379:methods*; D002851:Chromatography, High Pressure Liquid; D002852:Chromatography, Ion Exchange / Q000379:methods; D002853:Chromatography, Liquid / Q000379:methods; D015232:Dinoprostone / Q000378:metabolism; D004587:Electrophoresis, Agar Gel / Q000379:methods*; D004867:Equipment Design; D006801:Humans; D013058:Mass Spectrometry / Q000379:methods; D059630:Mesenchymal Stem Cells / Q000166:cytology; D008956:Models, Chemical; D011453:Prostaglandins / Q000302:isolation & purification / Q000378:metabolism; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D029909:Sophora / Q000378:metabolism*
chemical_list: D011453:Prostaglandins; D015232:Dinoprostone