5848875
doi
10.5281/zenodo.5848875
oai:zenodo.org:5848875
user-bioreco2ver-h2020
user-eu
d'Ippolito, Giuliana
Panico, Antonio
Lens, Piet N.L.
Esposito, Giovanni
Fontana, Angelo
Enhancement of hydrogen production rate by high biomass concentrations of Thermotoga neapolitana
Dreschke, Gilbert
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
Hydrogen
Thermotoga neapolitana
Biomass concentration
Dark fermentation
Hyperthermophilic
<p>The objective of this study was to enhance the hydrogen production rate of dark fermentation in batch operation. For the first time, the hyperthermophilic pure culture of Thermotoga neapolitana cf. Capnolactica was applied at elevated biomass concentrations. The increase of the initial biomass concentration from 0.46 to 1.74 g cell dry weight/L led to a general acceleration of the fermentation process, reducing the fermentation time of 5 g glucose/L down to 3 h with a lag phase of 0.4 h. The volumetric hydrogen production rate increased from 323 (±11) to 654 (±30) mL/L/h with a concomitant enhancement of the biomass growth and glucose consumption rate. The hydrogen yield of 2.45 (±0.09) mol H2/ mol glucose, the hydrogen concentration of 68% in the produced gas and the composition of the end products in the digestate, i.e. 62.3 (±2.5)% acetic acid, 23.5 (±2.9)% lactic acid and 2.3 (±0.1)% alanine, remained unaffected at increasing biomass concentrations.</p>
Zenodo
2018-05-13
info:eu-repo/semantics/workingPaper
3247829
user-bioreco2ver-h2020
user-eu
award_title=Biological routes for CO2 conversion into chemical building blocks; award_number=760431; award_identifiers_scheme=url; award_identifiers_identifier=https://cordis.europa.eu/projects/760431; funder_id=00k4n6c32; funder_name=European Commission;
1642168129.48118
815538
md5:8cb4ea38f54f997c784f0411dc54c6a7
https://zenodo.org/records/5848875/files/IJHE2018_EnhancementofH2productionbyTn-1.pdf
public
10.5281/zenodo.3247829
isVersionOf
doi