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Transport properties of amino acid ions at isoelectric point in electrodialysis
Yuan, Fangfang1,2; Wang, Qian1; Yang, Pengbo1; Cong, Wei1
2016-08-10
发表期刊SEPARATION AND PURIFICATION TECHNOLOGY
ISSN1383-5866
卷号168期号:AUG页码:257-264
摘要The protonation and deprotonation reactions in systems containing amino acids play an important role and lead to some principal peculiarities of their transport in solution and membrane. A better understanding of the behavior of bipolar amino acid ions in electrodialysis would help a lot to facilitate or restrain the transfer of amino acids depending on the applications. In this work, the dissociation and migration of glutamic acid (acidic) and lysine (basic) in electrodialysis was ascertained using the special seven-compartment assemblies. It showed that acidic glutamic acid was inclined to be negatively charged and migrate towards the anode, while basic lysine preferred to be positively charged and migrate towards the cathode. Besides, the process performances of the same amino acids were also investigated during the conventional electrodialysis with the five-compartment assemblies. The pH and adsorption characteristics of membranes indicated that the above conclusion was valid for the conventional electrodialysis as well. Moreover, process parameters, i.e. overall current efficiency and energy consumption, were also assessed and compared for the electrodialysis of glutamic acid and lysine solutions. (C) 2016 Elsevier B.V. All rights reserved.
关键词Electrodialysis Glutamic Acid Lysine Ionic Transport
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.seppur.2016.05.058
收录类别SCI
语种英语
关键词[WOS]EXCHANGE MEMBRANES ; WATER DISSOCIATION ; BIOREFINERY APPLICATIONS ; BIPOLAR MEMBRANE ; PROTON-TRANSFER ; SEPARATION ; ELECTROTRANSPORT ; RECOVERY ; MIXTURES ; JUNCTION
WOS研究方向Engineering
WOS类目Engineering, Chemical
项目资助者Twelfth-five-year 863 High-Tech Program(2015AA021001) ; National Natural Science Foundation of China(21506223)
WOS记录号WOS:000378951800031
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21193
专题生化工程国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Yuan, Fangfang,Wang, Qian,Yang, Pengbo,et al. Transport properties of amino acid ions at isoelectric point in electrodialysis[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2016,168(AUG):257-264.
APA Yuan, Fangfang,Wang, Qian,Yang, Pengbo,&Cong, Wei.(2016).Transport properties of amino acid ions at isoelectric point in electrodialysis.SEPARATION AND PURIFICATION TECHNOLOGY,168(AUG),257-264.
MLA Yuan, Fangfang,et al."Transport properties of amino acid ions at isoelectric point in electrodialysis".SEPARATION AND PURIFICATION TECHNOLOGY 168.AUG(2016):257-264.
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