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学科主题: 物理化学
题名: Microwave-assisted Extraction of Lactones from Ligusticum Chuanxiong Hort. Using Protic Ionic Liquid
作者: Zhang ZD(张之达) ;  Chen JP(陈吉平) ;  Li ZP(李长平) ;  UrsWelz-Biermann ;  Wang AJ(王安杰)
会议名称: 2nd Asia Pacific Conference on Ionic Liquids and Green Processes
会议日期: 2010-9-07
出版日期: 2010-09-07
会议地点: 中国
通讯作者: Urs Welz-Biermann
部门归属: 二室
主办者: 中国科学院大连化学物理研究所
摘要: As an important approach, extraction method is usually adopted in separating bioactive ingredients from Chinese Medicine. However, volatile traditional organic solvents are commonly used in the extraction process, which would lead to environment pollution and solvents loss. At the same time, it is very time consuming. Thus 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.. Two protic ionic liquids, N,N-Dimethyl(cyanoethyl)ammonium propionate (DECEAP) and N,N-Dimethyl-N-(2-hydroxyethoxyethyl) ammonium propionate (DEHEEAP), were employed as extractants. Factors such as system temperature, extraction time, solid-to-solvent ratio and particle size were studied. The yield of the three target ingredients was compared between MAE and solvent reflux extraction (SRE). The result shows that system temperature is the key factor of extraction process for both ionic liquids. Extraction comes to equilibrium within 1 minute and 5 minutes for DECEAP and DEHEEAP, respectively. Solid-to-solvent ratio and particle size do not give obvious contribution to the extraction efficiency.
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/114250
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Zhang ZD,Chen JP,Li ZP,et al. Microwave-assisted Extraction of Lactones from Ligusticum Chuanxiong Hort. Using Protic Ionic Liquid[C]. 见:2nd Asia Pacific Conference on Ionic Liquids and Green Processes. 中国. 2010-9-07.
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