DICP OpenIR
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
KeywordBeta-cyclodextrin Polymer Adsorption Aromatic Amino Acids Branched-chain Amino Acids
Source PublicationJOURNAL OF MOLECULAR RECOGNITION
2006
DOI10.1002/jmr.756
Volume19Issue:1Pages:39-48
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS SubjectBiochemistry & Molecular Biology ; Biophysics
WOS Research AreaBiochemistry & Molecular Biology ; Biophysics
WOS KeywordPERFORMANCE-LIQUID-CHROMATOGRAPHY ; MOLECULARLY IMPRINTED POLYMERS ; MONOLITHIC STATIONARY PHASES ; EFFICIENT RECOGNITION ; SEPARATION ; CHOLESTEROL ; ADSORBENTS ; WATER ; DIASTEREOMERS ; EQUILIBRIUM
Abstractbeta-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.
Language英语
WOS IDWOS:000234691500005
Citation statistics
Cited Times:44[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/140351
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatograph Res & Anal Ctr, Dalian 116023, Peoples R China
Recommended Citation
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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