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生物质化学工程

生物质化学工程 ›› 2008, Vol. 42 ›› Issue (3): 5-8.

• 论文 • 上一篇    下一篇

多溶剂萃取法精制印楝素的研究

谭卫红, 宋湛谦   

  1. 中国林业科学研究院 林产化学工业研究所;国家林业局 林产化学工程重点开放性实验室, 江苏 南京 210042
  • 收稿日期:2008-02-25 修回日期:1900-01-01 出版日期:2008-05-30 发布日期:2008-05-30
  • 通讯作者: 宋湛谦(1942- ),男,中国工程院院士,研究员,主要从事松脂、纤维素、木质素和生物农药方面的化学利用研究。

Research on Enrichment of Azadirachtin by Multi-solvent Partition

TAN Wei-hong, SONG Zhan-qian   

  1. Institute of Chemical Industry of Forest Products, CAF;Key and Open Lab.on Forest Chemical Engineering, SFA, Nanjing 210042, China
  • Received:2008-02-25 Revised:1900-01-01 Online:2008-05-30 Published:2008-05-30

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摘要： 对比研究了多溶剂萃取法与单溶剂萃取法精制印楝素的效果,并通过正交试验法选择了多溶剂萃取法精制印楝素的最佳试验条件为:萃取溶剂V(二氯甲烷):V(乙酸乙酯)1:5,分相液V(丙酮):V(水)1:1,V(萃取溶剂):V(分相液)10:3,该方法可将乙醇提取物中印楝素的质量分数从 3.68% 提高到 17.76%。多溶剂萃取法是一种简单高效的精制印楝素的方法。

关键词: 多溶剂萃取, 印楝素, 精制

Abstract: Methods of enrichment of azadirachtin by solvent and multi-solvent partition were studied, The optimized condition of multi-solvent partition of azadirachtin obtained by orthogonal tests was: solvent: dichloromethane: ethyl acetate(1:5,V:V), separatory liquid: acetone:water(1:1), solvent:separatory liquid(10:3). Multi-solvent partition was found to be able to enhance the content of azadirachtin in ethanol extract from 3.68%-17.76%. It is a simple and efficient method to enrich azadirachtin in its extracts.

Key words: multi-solvent partition, azadirachtin, enrichment

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