Electrochemical control of redox potential affects methanogenesis of the hydrogenotrophic methanogen Methanothermobacter thermautotrophicus
Abstract
To investigate the precise effect of the redox potential on the methanogenesis of the hydrogenotrophic methanogen Methanothermobacter thermautotrophicus by using an electrochemical redox controlling system without adding oxidizing or reducing agents. A bioelectrochemical system was applied to control the redox conditions in culture and to measure the methane-producing activity of M. thermautotrophicus at a constant potential from +0·2 to -0·8 V (vs Ag/AgCl). Methane production and growth of M. thermautotrophicus were 1·6 and 3·5 times increased at -0·8 V, compared with control experiments without electrolysis, respectively, while methanogenesis was suppressed between +0·2 and -0·2 V. A clear relationship between an electrochemically regulated redox potential and methanogenesis was revealed.
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CH4 production in a Methanothermobacter thermautotrophicus culture was suppressed at Eh higher than -200 mV.
“Indeed, CH4 production in a Methanothermobacter thermautotrophicus culture was suppressed at Eh higher than -200 mV (Hirano et al., 2013).”
From Comparative Analysis of the Microbiota Between Sheep Rumen and Rabbit Cecum Provides New Insight Into Their Differential Methane Production (2018) · cites this paper as Hirano et al., 2013
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Mi, L., Yang, B., Hu, X., Luo, Y., Liu, J., Yu, Z., & Wang, J. (2018) · Frontiers in Microbiology · doi:10.3389/fmicb.2018.00575 · Cited by 50 · see citing works
- Authors
- Hirano, S., Matsumoto, N., Morita, M., Sasaki, K., & Ohmura, N.
- Affiliations
- Central Research Institute of Electric Power Industry (JP)
- Corresponding author
- Hirano, S.
- ORCID
- Venue
- Letters in Applied Microbiology
- Publisher
- Oxford University Press (OUP)
- Published
- 2013-03-15
- Volume
- 56
- Issue
- 5
- Pages
- 315-321
- ISSN
- 0266-8254 (ISSN-L)
- OpenAlex
- W1980261125
- Cited by
- 102
- References
- 0
- Citations by year
- 2026: 8 · 2025: 7 · 2024: 10 · 2023: 9 · 2022: 10 · 2021: 14 · 2020: 8 · 2019: 7 · 2018: 11 · 2017: 5 · 2016: 5 · 2015: 4 · 2014: 3 · 2013: 1
- FWCI
- 3.59
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Letters in Applied Microbiology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- New Energy and Industrial Technology Development Organization
- Topics
- Physical Sciences › Environmental Science › Environmental Engineering › Microbial Fuel Cells and Bioremediation
- Physical Sciences › Engineering › Building and Construction › Anaerobic Digestion and Biogas Production
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial metabolism and enzyme function
- Keywords
- Methanothermobacter thermautotrophicus, hydrogenotrophic methanogenesis, redox potential, bioelectrochemical systems, methane production, anaerobic digesters, electrolysis
- MeSH terms
- Electrolysis, Methane, Oxidation-Reduction, Methanobacteriaceae, Biomass, Electrochemical Techniques
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