Microwave-assisted extraction of lactones from Ligusticum chuanxiong Hort. using protic ionic liquids

	Microwave-assisted extraction of lactones from Ligusticum chuanxiong Hort. using protic ionic liquids
	Chi Yansheng 1; Zhang Zhida 1; Li Changping 1,2; Liu Qingshan 1; Yan Peifang 1; Welz-Biermann, Urs 1
刊名	green chemistry
	2011
卷号	13 期号:3 页码:666-670
ISSN号	待补充
通讯作者	李长平 ; urswelz-biermann
产权排序	1,1
中文摘要	microwave-assisted extraction of lactones from ligusticum chuanxiong hort. using protic ionic liquids
英文摘要	traditional chinese medicine is still the main source for medical treatment in china. extraction processes are usually adopted to separate bioactive ingredients from local plants. however, volatile traditional organic solvents are commonly used in the extraction process, which would lead to solvent loss and environment pollution. in this work, in order to improve the extraction process and develop a greener process, a microwave-assisted extraction (mae) method was investigated to extract senkyunolide i, senkyunolide h and z-ligustilide from ligusticum chuanxiong hort. two ionic liquids, n, n-dimethyl-n-(2-hydroxyethoxyethyl)ammonium propionate (dmheeap) and n, n-dimethyl(cyanoethyl)ammonium propionate (dmceap), were employed as extractants. important factors such as system temperature, extraction time, solid-to-solvent ratio and particle size were studied. the results show the system temperature was main factor which affects the microwave assisted extraction process. the extraction equilibrium could be reached in a short period of time. the extraction efficiency was not affected by the phase ratio within a certain solid/solvent ratio range. the particle size of ligusticum chuanxiong powder had no remarkable effect on extraction efficiency. the back-extraction of protic ionic liquids using n-hexane was realized, and the concentration of senkyunolide i and senkyunolide h hardly decreased, but the concentration of z-ligustilide decreased by 39.7%. the extraction mechanism of the investigated microwave assisted ionic liquid extraction was the same as traditional organic solvent extraction.
学科主题	物理化学
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, multidisciplinary
研究领域[WOS]	chemistry
关键词[WOS]	chromatography-mass-spectrometry ; aromatic-hydrocarbons ; water samples ; microextraction ; hexafluorophosphate ; flavonoids ; solvents ; media ; co2
收录类别	SCI
语种	英语
WOS记录号	WOS:000288126300028
公开日期	2012-07-09
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/115862]
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
作者单位	1.Dalian Inst Chem Phys, China Ion Liquid Lab, Dalian, Peoples R China 2.Dalian Univ, Coll Chem Engn & Environm, Dalian, Peoples R China
推荐引用方式 GB/T 7714	Chi Yansheng,Zhang Zhida,Li Changping,et al. Microwave-assisted extraction of lactones from Ligusticum chuanxiong Hort. using protic ionic liquids[J]. green chemistry,2011,13(3):666-670.
APA	Chi Yansheng,Zhang Zhida,Li Changping,Liu Qingshan,Yan Peifang,&Welz-Biermann, Urs.(2011).Microwave-assisted extraction of lactones from Ligusticum chuanxiong Hort. using protic ionic liquids.green chemistry,13(3),666-670.
MLA	Chi Yansheng,et al."Microwave-assisted extraction of lactones from Ligusticum chuanxiong Hort. using protic ionic liquids".green chemistry 13.3(2011):666-670.