A two-stage biological gas to liquid transfer process to convert carbon dioxide into bioplastic
Type
ArticleAuthors
Al Rowaihi, Israa
Kick, Benjamin
Grötzinger, Stefan W.
Burger, Christian
Karan, Ram
Weuster-Botz, Dirk
Eppinger, Jörg

Arold, Stefan T.

KAUST Department
Biological & Organometallic Catalysis LaboratoriesBiological 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/1/1976-06Date
2018-03-06Online Publication Date
2018-03-06Print Publication Date
2018-03Permanent link to this record
http://hdl.handle.net/10754/627316
Metadata
Show full item recordAbstract
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 BVJournal
Bioresource Technology ReportsAdditional Links
http://www.sciencedirect.com/science/article/pii/S2589014X18300148ae974a485f413a2113503eed53cd6c53
10.1016/j.biteb.2018.02.007