• Login
    View Item 
    •   Home
    • Research
    • Articles
    • View Item
    •   Home
    • Research
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguideTheses and Dissertations LibguideSubmit an Item

    Statistics

    Display statistics

    Advanced characterization of dissolved organic matter released by bloom-forming marine algae

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Type
    Article
    Authors
    Rehman, Zahid Ur cc
    Jeong, Sanghyun
    Tabatabai, S. Assiyeh Alizadeh cc
    Emwas, Abdul-Hamid M.
    Leiknes, TorOve cc
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Environmental Science and Engineering Program
    Imaging and Characterization Core Lab
    NMR
    Water Desalination and Reuse Research Center (WDRC)
    Date
    2017
    Permanent link to this record
    http://hdl.handle.net/10754/625599
    
    Metadata
    Show full item record
    Abstract
    Algal organic matter (AOM), produced by marine phytoplankton during bloom periods, may adversely affect the performance of membrane processes in seawater desalination. The polysaccharide fraction of AOM has been related to (bio)fouling in micro-filtration and ultrafiltration, and reverse osmosis membranes. However, so far, the chemical structure of the polysaccharides released by bloom-forming algae is not well understood. In this study, dissolved fraction of AOM produced by three algal species (Chaetoceros affinis, Nitzschia epithemoides and Hymenomonas spp.) was characterized using liquid chromatography–organic carbon detection (LC-OCD) and fluorescence spectroscopy. Chemical structure of polysaccharides isolated from the AOM solutions at stationary phase was analyzed using proton nuclear magnetic resonance (H-NMR). The results showed that production and composition of dissolved AOM varied depending on algal species and their growth stage. AOM was mainly composed of biopolymers (BP; i.e., polysaccharides and proteins [PN]), but some refractory substances were also present.H-NMR spectra confirmed the predominance of carbohydrates in all samples. Furthermore, similar fingerprints were observed for polysaccharides of two diatom species, which differed considerably from that of coccolithophores. Based on the findings of this study,H-NMR could be used as a method for analyzing chemical profiles of algal polysaccharides to enhance the understanding of their impact on membrane fouling.
    Citation
    Rehman ZU, Jeong S, Tabatabai S.A.A. , Emwas A, -H. , Leiknes T (2017) Advanced characterization of dissolved organic matter released by bloom-forming marine algae. DESALINATION AND WATER TREATMENT 69: 1–11. Available: http://dx.doi.org/10.5004/dwt.2017.0444.
    Sponsors
    This study was supported by funding from King Abdullah University of Science and Technology (KAUST).
    Publisher
    Desalination Publications
    Journal
    DESALINATION AND WATER TREATMENT
    DOI
    10.5004/dwt.2017.0444
    Additional Links
    http://www.deswater.com/DWT_articles/vol_69_papers/69_2017_1.pdf
    ae974a485f413a2113503eed53cd6c53
    10.5004/dwt.2017.0444
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Environmental Science and Engineering Program; Imaging and Characterization Core Lab; Water Desalination and Reuse Research Center (WDRC)

    entitlement

     
    DSpace software copyright © 2002-2022  DuraSpace
    Quick Guide | Contact Us | KAUST University Library
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.