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Application of cross-linked beta-cyclodextrin polymer for adsorption of aromatic amino acids
Tang, SW; Kong, L; Ou, JJ; Liu, YQ; Li, X; Zou, HF
关键词Beta-cyclodextrin Polymer Adsorption Aromatic Amino Acids Branched-chain Amino Acids
刊名JOURNAL OF MOLECULAR RECOGNITION
2006
DOI10.1002/jmr.756
19期:1页:39-48
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Life Sciences & Biomedicine
类目[WOS]Biochemistry & Molecular Biology ; Biophysics
研究领域[WOS]Biochemistry & Molecular Biology ; Biophysics
关键词[WOS]PERFORMANCE-LIQUID-CHROMATOGRAPHY ; MOLECULARLY IMPRINTED POLYMERS ; MONOLITHIC STATIONARY PHASES ; EFFICIENT RECOGNITION ; SEPARATION ; CHOLESTEROL ; ADSORBENTS ; WATER ; DIASTEREOMERS ; EQUILIBRIUM
英文摘要beta-Cyclodextrin (beta-CyD) was cross-linked by hexamethylene diisocyanate and the polymer was investigated for adsorption of aromatic amino acids (AAA) from phosphate buffer. High adsorption rates were observed at the beginning and the adsorption equilibrium was then gradually achieved in about 45 min. The adsorption of AAA decreased with the increase of initial concentration and also temperature. Under the same conditions, the adsorption efficiencies of AAA were in the order of (L)-tryptophan ((L)-Trp) > (L)-phenylalanine ((L)-Phe) > (L)-tyrosine ((L)-Tyr). Much higher adsorption values, up to 52.4 and 43.0mg/g for (L)-Trp and (L)-Phe, respectively, at 50 mmol/L and 3.2 mg/g for (L)-Tyr at 2 mmol/L, were obtained with the beta-CyD polymer at 37 degrees C. It was shown that the adsorption of AAA on the beta-CyD polymer was consistent with the Freundlich isotherm equation. The adsorption of mixed aromatic amino acids and branched-chain amino acids (BCAA) showed that AAA were preferentially adsorbed with adsorption efficiencies 10-24%, while those of BCAA were lower than 2%. It seems that the structure and hydrophobicity of amino acid molecules are responsible for the difference in adsorption, by influencing the strength of interactions between amino acid molecule and the polymer. Copyright (c) 2005 John Wiley & Sons, Ltd.
语种英语
WOS记录号WOS:000234691500005
引用统计
被引频次:41[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140351
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatograph Res & Anal Ctr, Dalian 116023, Peoples R China
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GB/T 7714
Tang, SW,Kong, L,Ou, JJ,et al. Application of cross-linked beta-cyclodextrin polymer for adsorption of aromatic amino acids[J]. JOURNAL OF MOLECULAR RECOGNITION,2006,19(1):39-48.
APA Tang, SW,Kong, L,Ou, JJ,Liu, YQ,Li, X,&Zou, HF.(2006).Application of cross-linked beta-cyclodextrin polymer for adsorption of aromatic amino acids.JOURNAL OF MOLECULAR RECOGNITION,19(1),39-48.
MLA Tang, SW,et al."Application of cross-linked beta-cyclodextrin polymer for adsorption of aromatic amino acids".JOURNAL OF MOLECULAR RECOGNITION 19.1(2006):39-48.
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