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	Application of ionic liquid in Ligusticum Chuanxiong Hort Extraction using Microwave-assisted Method
	Zhang ZD(张之达) ; Li ZP(李长平) ; UrsWelz-Biermann
	2010-03-14
会议名称	euchem 2010 conference on molten salts and ionic liquids
会议日期	2010-3-14
会议地点	德国
页码	361/2
通讯作者	urs welz-biermann
中文摘要	bioactive ingredients are extracted from traditional chinese medicine using bulk volatile organic solvents and lots of time. and the organic solvents are pollutant source to environment. so it is urgent to develop new methods for natural product extraction. in this study，a microwave-assisted extraction (mae) method was developed to extract senkyunolide i, senkyunolide h and z-ligustilide from ligusticum chuanxiong hort. ionic liquid, 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide, was employed as extractant. factors such as system temperature, extraction time, phase ratio and particle size were studied. the yield of the three target ingredients was compared between mae and solvent reflux extraction (sre), and the sample matrix was studied by sem. the result shows that temperature is the key factor of extraction process; extraction comes to equilibrium within one minute; phase ratio and particle size do not give obvious contribution to the extraction efficiency. compared to sre, mae costs less time and gives higher extraction efficiency. and structural damage was found through sem study.
会议主办者	dechema
学科主题	物理化学
语种	中文
内容类型	会议论文
源URL	[http://159.226.238.44/handle/321008/114468]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
推荐引用方式 GB/T 7714	Zhang ZD,Li ZP,UrsWelz-Biermann. Application of ionic liquid in Ligusticum Chuanxiong Hort Extraction using Microwave-assisted Method[C]. 见:euchem 2010 conference on molten salts and ionic liquids. 德国. 2010-3-14.

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