天然产物研究与开发 ›› 2014, Vol. 26 ›› Issue (4): 588-593.

• 开发研究 • 上一篇    下一篇

草木犀香豆素的提取工艺及抑菌活性研究

丛建民,陈凤清*,野俊双,丁淑旺,王婷,王平,孙春玲*   

  1. 白城师范学院,白城 137000
  • 出版日期:2014-04-30 发布日期:2014-11-19

Extraction and Antibacterial Activity of Coumarin from Melilotus officinalis

CONG Jian-min, CHEN Feng-qing*, YE Jun-shuang, DING Shu-wang, WANG Ting, WANG Ping, SUN Chun-ling*   

  1. Baicheng Normal University,Jilin Baicheng,137000,China
  • Online:2014-04-30 Published:2014-11-19

摘要: 本研究提取草木犀中四种主要香豆素类物质。以草木犀为原料,从颗粒大小、料液比、提取剂(乙醇)浓度、温度、时间方面进行超声提取单因素实验和正交实验,确定最佳的提取工艺。并对所提取的香豆素进行了细菌抑菌实验。实验结果显示单因素与正交实验优化提取工艺后,提取粗品中补骨脂素为721.92 mg/kg,香豆素为425.88 mg/kg,欧前胡素为165.73 mg/kg,异欧前胡素为182.49 mg/kg。在5% NaHCO3和1% NaOH最佳浓度下提纯,得到补骨脂素为613.63 mg/kg,香豆素为362.00 mg/kg,欧前胡素为140.87 mg/kg,异欧前胡素为155.12 mg/kg。香豆素10倍和50倍稀释液对细菌有抑制作用。

关键词: 草木犀, 香豆素, 提取工艺, 抑菌

Abstract: In this study,four coumarins were extracted from Melilotus officinalis (Linn.) Pall.The optimal extraction conditions were established through the optimization of particle size of M.officinalis, ratio of material to liquid,ethanol concentration,extraction temperature and extraction time by single factor and orthogonal experiments.In addition,the antibacterial activity of the coumarin extract was investigated.Using the optimized extraction conditions,721.92 mg of psoralen,425.88 mg of coumarin,165.73 mg of imepratorin and 182.49 mg of isoimperatorin were extracted from per kilogram of crude M.officinalis. The crude extract was applied for further purification.Finally,613.63 mg of psoralen,362.00 mg of coumarin,140.87 mg of imepratorin and 155.12 mg of isoimperatorin were obtained from per kilogram of crude M.officinalis. The 10-fold and 50-fold diluted coumarin solution showed inhibitory effect on bacteria.

Key words: Melilotus officinalis (Linn.) Pall, coumarin, extraction technology, antibacterial

中图分类号: 

R931.4