Growth profile of Carboxydothermus hydrogenoformans on pyruvate
| Autor: | Ruxandra Cimpoia, Ya Zhao, Serge R. Guiot, Mathieu Haddad |
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| Rok vydání: | 2013 |
| Předmět: |
Pyruvate decarboxylation
Pyruvate Hydrogen Water-gas shift reaction Biophysics chemistry.chemical_element Carboxydothermus hydrogenoformans Applied Microbiology and Biotechnology 03 medical and health sciences chemistry.chemical_compound Carbon monoxide 030304 developmental biology 0303 health sciences biology Strain (chemistry) 030306 microbiology Thermophile biology.organism_classification 6. Clean water Biochemistry chemistry C. hydrogenoformans Original Article C. hydrogenormans Bacteria |
| Zdroj: | AMB Express |
| ISSN: | 2191-0855 |
| Popis: | Carboxydothermus hydrogenoformans is a thermophilic anaerobic strain most widely known for its ability to produce hydrogen (H2) when grown on carbon monoxide (CO). Although relatively well studied, growth characterization on pyruvate has never been assessed. The present work fully characterizes growth of the bacterium on pyruvate as a sole carbon source. C. hydrogenoformans demonstrated a growth rate of 0.03 h-1, with pyruvate consumption ranging between 0.21 and 0.48 mol · g-1 volatile suspended solid · d-1. A lag phase was also observed when switching from pyruvate to CO. When grown simultaneously on pyruvate and CO, pyruvate consumption was initiated upon CO depletion. This was attributed to pyruvate oxidation inhibition by CO, and not to a diauxic phenomenom. The strain also showed homoacetogenic activity. |
| Databáze: | OpenAIRE |
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