| 摘要: |
| 【目的】分析苦荞籽粒的化学成分，为进一步了解苦荞籽粒的次生代谢成分提供参考。【方法】采用试管法对苦荞籽粒化学成分进行系统预试，以工业乙醇为溶剂对其化学成分进行超声辅助提取，采用硅胶柱层析、聚酰胺柱层析和凝胶柱层析（Sephadex LH20）对化合物进行分离，通过紫外-可见光谱法（UV）、红外光谱法（IR）、质谱法（MS）、核磁共振法（1H NMR、13C NMR）的综合分析结果对化合物结构进行鉴定。【结果】从苦荞籽粒中共分离得到10个单体化合物，其中5个分别被鉴定为伞形花内酯、槲皮素、山奈酚-3-O-芸香糖苷、(-)-表儿茶素和芦丁。【结论】苦荞籽粒中的主要化学成分为黄酮类化合物，伞形花内酯为首次从该植物中发现。 |
| 关键词: 苦荞 化学成分 伞形花内酯 芦丁 |
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| 基金项目:国家自然科学基金项目（31000865,30771454） |
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| Chemical constituents of seeds of Fagopyrum tataricum (Linn) Gaertn |
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| Abstract: |
| 【Objective】The study was conducted to analyze the chemical constituents of seeds of Fagopyrum tataricum(Linn) Gaertn,which would provide theoretical reference for further understanding of the constituents of secondary metabolites in seeds of F.tataricum(Linn) Gaertn.【Method】A tube method was used to conduct chemical constituent pretest.The chemical consitituents were extracted by EtOH as solvent under ultrasonic assistance.Column chromatographys on silica gel,polyamide and Sephadex LH20 were adopted to isolate compounds.The structures of compounds were elucidated by UV,IR,ESI-MS,1H NMR and 13C NMR.【Result】Ten compounds were obtained from seeds of F.tataricum(Linn) Gaertn,and of which five were identified as umbelliferone,quercetin,kaempferol-3-O-rutinoside,(-)-epicatechin and rutin,respectively.【Conclusion】Flavonoids are the main chemical components of seeds of F.tataricum(Linn) Gaertn.Umbelliferone has been found from this plant for the first time. |
| Key words: Fagopyrum tataricum chemical constituents umbelliferone rutin |
