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    A two-stage biological gas to liquid transfer process to convert carbon dioxide into bioplastic

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    Type
    Article
    Authors
    Al Rowaihi, Israa cc
    Kick, Benjamin
    Grötzinger, Stefan W.
    Burger, Christian
    Karan, Ram
    Weuster-Botz, Dirk
    Eppinger, Jörg cc
    Arold, Stefan T. cc
    KAUST Department
    Biological & Organometallic Catalysis Laboratories
    Biological and Environmental Sciences and Engineering (BESE) Division
    Bioscience Program
    Chemical Science Program
    Computational Bioscience Research Center (CBRC)
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    KAUST Catalysis Center (KCC)
    Office of the VP
    Physical Science and Engineering (PSE) Division
    Structural Biology and Engineering
    KAUST Grant Number
    URF/1/1976-06
    Date
    2018-03-06
    Online Publication Date
    2018-03-06
    Print Publication Date
    2018-03
    Permanent link to this record
    http://hdl.handle.net/10754/627316
    
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    Abstract
    The fermentation of carbon dioxide (CO2) with hydrogen (H2) uses available low-cost gases to synthesis acetic acid. Here, we present a two-stage biological process that allows the gas to liquid transfer (Bio-GTL) of CO2 into the biopolymer polyhydroxybutyrate (PHB). Using the same medium in both stages, first, acetic acid is produced (3.2 g L−1) by Acetobacterium woodii from 5.2 L gas-mixture of CO2:H2 (15:85 v/v) under elevated pressure (≥2.0 bar) to increase H2-solubility in water. Second, acetic acid is converted to PHB (3 g L−1 acetate into 0.5 g L−1 PHB) by Ralstonia eutropha H16. The efficiencies and space-time yields were evaluated, and our data show the conversion of CO2 into PHB with a 33.3% microbial cell content (percentage of the ratio of PHB concentration to cell concentration) after 217 h. Collectively, our results provide a resourceful platform for future optimization and commercialization of a Bio-GTL for PHB production.
    Citation
    Al Rowaihi I, Kick B, Grötzinger SW, Burger C, Karan R, et al. (2018) A two-stage biological gas to liquid transfer process to convert carbon dioxide into bioplastic. Bioresource Technology Reports. Available: http://dx.doi.org/10.1016/j.biteb.2018.02.007.
    Sponsors
    The research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST) through the baseline fund and the Award No URF/1/1976-06 from the Office of Sponsored Research (OSR).
    Publisher
    Elsevier BV
    Journal
    Bioresource Technology Reports
    DOI
    10.1016/j.biteb.2018.02.007
    Additional Links
    http://www.sciencedirect.com/science/article/pii/S2589014X18300148
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.biteb.2018.02.007
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Bioscience Program; Physical Science and Engineering (PSE) Division; Chemical Science Program; KAUST Catalysis Center (KCC); Computational Bioscience Research Center (CBRC); Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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