Maltodextrin-modified graphene oxide composite membrane applied to the enantioseparation of amino acids.

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  • Additional Information
    • Source:
      Publisher: Elsevier Country of Publication: Netherlands NLM ID: 9318488 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-3778 (Electronic) Linking ISSN: 00219673 NLM ISO Abbreviation: J Chromatogr A Subsets: MEDLINE
    • Publication Information:
      Original Publication: Amsterdam ; New York : Elsevier, 1993-
    • Subject Terms:
      Graphite*/chemistry ; Polysaccharides*/chemistry ; Polysaccharides*/isolation & purification ; Amino Acids*/chemistry ; Amino Acids*/isolation & purification ; Membranes, Artificial*; Stereoisomerism ; Ethylenediamines/chemistry
    • Abstract:
      The separation of enantiomers using chiral membranes has garnered much research interest. In this study, the enantioseparation of amino acids using chiral membranes, namely graphene oxide-ethylenediamine-maltodextrin (GO-EDA-MD) and GO-EDA-hydroxypropyl-MD (GO-EDA-HP-MD), was evaluated. HP-MD and MD were investigated as chiral selectors due to their inherent chirality. Various characterization techniques, including atomic force microscopy, Fourier transform infrared spectrometry, field emission scanning electron microscopy, water contact angle analysis, tensile properties, and thermal gravimetric analysis were employed to analyze the membrane structures. The evaluation of enantioseparation performance was conducted by employing tryptophan, phenylalanine, and tyrosine enantiomers. Optimal conditions for enantiomer separation were achived using a GO-EDA-HP-MD chiral composite (1.75 wt%), a feed concentration of 10 mg/L for each enantiomer, a separation time of 15 min, and a membrane effective surface area of 1.0 cm 2 . Also, the bovine serum albumin rejection was 90.0 %, and the water flux reached 37.1 L m -2 h -1 . The highest enantiomeric excess (ee.%) values were 46.33 %, 76.97 %, and 73.04 % for tryptophan, phenylalanine, and tyrosine, respectively. The impact of voltage on ee.% and substance flux was also explored. This membrane was able to separate enantiomers successfully.
      Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
      (Copyright © 2024 Elsevier B.V. All rights reserved.)
    • Contributed Indexing:
      Keywords: Amino acid; Chiral membrane; Enantioseparation; Graphene oxide; Hydroxypropyl maltodextrin
    • Accession Number:
      7782-42-5 (Graphite)
      0 (Polysaccharides)
      7CVR7L4A2D (maltodextrin)
      0 (Amino Acids)
      0 (graphene oxide)
      0 (Membranes, Artificial)
      0 (Ethylenediamines)
    • Publication Date:
      Date Created: 20240806 Date Completed: 20240821 Latest Revision: 20240821
    • Publication Date:
      20240822
    • Accession Number:
      10.1016/j.chroma.2024.465217
    • Accession Number:
      39106666