Aqueous two phase extraction process of tryptophan based on functionalized ionic liquids
文献类型：期刊论文
| 作者 | Li, Changping1; Li, Zhuo1,2; Wang, Ailing1; Yin, Jingmei1; Wang, Jian1; Li, Huaxi1; Liu, Qingshan3 |
| 刊名 | rsc advances
 |
| 出版日期 | 2013 |
| 卷号 | 3期号:18页码:6356-6361 |
| 英文摘要 | investigation of aqueous two-phase extraction process of tryptophan was carried out by using functionalized ionic liquids (fils), such as 3-methyl-1-(n,n-diethylcarbonylmethyl) imidazolium chlorite ([mdcmim]cl), 3-methyl-1-(n, n-diethylcarbonylmethyl) imidazolium tetrafluoroborate ([mdcmim]bf4) and 3-methyl-1-(methoxycarbonylmethyl) imidazolium tetrafluoroborate ([eamim]bf4). some important factors that affect extraction process, such as effect of types of il, ph, mass of il, the amount of phosphate, and systems temperature were probed systematically. some important results are obtained as follows: tryptophan can be extracted with aqueous two phase systems based on fils successfully. the sequence of partition coefficients of tryptophan in the various ionic liquids based aqueous two phase systems follows: [mdcmim]cl > ([mdcmim]bf4) approximate to ([eamim]bf4) > ([bmim]bf4). ph influences partition coefficients greatly. when ph = 13, the partition coefficient of tryptophan can reach up to 180 by [mdcmim]cl/k2hpo4 aqueous two phase system. finally, extraction mechanisms were investigated through h-1 nmr and experimental study. the new hydrogen bond formed between tryptophan and amide group in fils and ion exchange are found to be the main mechanisms for the extraction process. notably, with the above valuable information, the new ionic liquids with two amide groups 1,3-bis (n, n-diethylcarbonylmethyl) imidazolium chlorite ([bmdcim]cl) were designed and synthesized and its partition coefficient can achieve 570, which is much higher than the existing fils and traditional ils. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, multidisciplinary |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | amino-acids ; assisted extraction ; biphasic systems ; imidazolium ; separation ; hexafluorophosphate ; solvent ; media ; co2 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000317584200023 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/137919]  |
| 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 Univ, Dept Chem Engn, Dalian 116012, Peoples R China 2.Dalian Ocean Univ, Sch Sci, Dalian, Peoples R China 3.Dalian Inst Chem Phys, Dalian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Changping,Li, Zhuo,Wang, Ailing,et al. Aqueous two phase extraction process of tryptophan based on functionalized ionic liquids[J]. rsc advances,2013,3(18):6356-6361. |
| APA | Li, Changping.,Li, Zhuo.,Wang, Ailing.,Yin, Jingmei.,Wang, Jian.,...&Liu, Qingshan.(2013).Aqueous two phase extraction process of tryptophan based on functionalized ionic liquids.rsc advances,3(18),6356-6361. |
| MLA | Li, Changping,et al."Aqueous two phase extraction process of tryptophan based on functionalized ionic liquids".rsc advances 3.18(2013):6356-6361. |
入库方式： OAI收割
来源：大连化学物理研究所
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