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Effects of different operating parameters on hydrogen production by Parageobacillus thermoglucosidasius DSM 6285

Mohr, Teresa 1; Aliyu, Habibu 1; Biebinger, Lars 1; Gödert, Roman 1; Hornberger, Alexander 1; Cowan, Don; Maayer, Pieter de; Neumann, Anke 1
1 Institut für Bio- und Lebensmitteltechnik (BLT), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Hydrogen gas represents a promising alternative energy source to dwindling fossil fuel reserves, as it carries the highest energy per unit mass and its combustion results in the release of water vapour as only byproduct. The facultatively anaerobic thermophile Parageobacillus thermoglucosidasius is able to produce hydrogen via the water–gas shift reaction catalyzed by a carbon monoxide dehydrogenase–hydrogenase enzyme complex. Here we have evaluated the effects of several operating parameters on hydrogen production, including different growth temperatures, pre-culture ages and inoculum sizes, as well as different pHs and concentrations of nickel and iron in the fermentation medium. All of the tested parameters were observed to have a substantive effect on both hydrogen yield and (specific) production rates. A final experiment incorporating the best scenario for each tested parameter showed a marked increase in the H2 production rate compared to each individual parameter. The optimised parameters serve as a strong basis for improved hydrogen production with a view of commercialisation of this process.

Verlagsausgabe §
DOI: 10.5445/IR/1000105232
Veröffentlicht am 18.02.2020
DOI: 10.1186/s13568-019-0931-1
Zitationen: 10
Web of Science
Zitationen: 6
Zitationen: 9
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Bio- und Lebensmitteltechnik (BLT)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 12.2019
Sprache Englisch
Identifikator ISSN: 2191-0855
KITopen-ID: 1000105232
Erschienen in AMB express
Verlag SpringerOpen
Band 9
Heft 1
Seiten Article No.207
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 23.12.2019
Nachgewiesen in Web of Science
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