Results 21 to 30 of about 40,593 (220)

Formaldehyde oxidation and methanogenesis [PDF]

open access: yesJournal of Bacteriology, 1984
Formaldehyde oxidation by cell-free extracts of Methanobacterium thermoautotrophicum was shown to drive methanogenesis from CH3-S-coenzyme M or HCHO under a nonreductive atmosphere of N2. Under N2 when HCHO was the sole source of carbon and reducing equivalents in the reaction, it underwent oxidation and reduction events (disproportionation), the sum ...
J C, Escalante-Semerena, R S, Wolfe
openaire   +2 more sources

Trace metal requirements for microbial enzymes involved in the production and consumption of methane and nitrous oxide [PDF]

open access: yes, 2012
Fluxes of greenhouse gases to the atmosphere are heavily influenced by microbiological activity. Microbial enzymes involved in the production and consumption of greenhouse gases often contain metal cofactors.
Glass, Jennifer B., Orphan, Victoria J.
core   +3 more sources

Microbial methanogenesis in the sulfate-reducing zone of surface sediments traversing the Peruvian margin [PDF]

open access: yesBiogeosciences, 2016
We studied the concurrence of methanogenesis and sulfate reduction in surface sediments (0–25 cm below sea floor) at six stations (70, 145, 253, 407, 990 and 1024 m) along the Peruvian margin (12° S).
J. Maltby   +3 more
doaj   +1 more source

Temperature effects on methanogenesis and sulfidogenesis during anaerobic digestion of sulfur-rich macroalgal biomass in sequencing batch reactors [PDF]

open access: yes, 2019
Methanogenesis and sulfidogenesis, the major microbial reduction reactions occurring in the anaerobic digestion (AD) process, compete for common substrates.
Jung, Heejung, Kim, Jaai, Lee, Changsoo
core   +1 more source

Inhibiting Methanogenesis in Rumen Batch Cultures Did Not Increase the Recovery of Metabolic Hydrogen in Microbial Amino Acids

open access: yesMicroorganisms, 2019
There is an interest in controlling rumen methanogenesis as an opportunity to both decrease the emissions of greenhouse gases and improve the energy efficiency of rumen fermentation. However, the effects of inhibiting rumen methanogenesis on fermentation
Emilio M. Ungerfeld   +3 more
doaj   +1 more source

The effect of 3-nitrooxypropanol, a potent methane inhibitor, on ruminal microbial gene expression profiles in dairy cows

open access: yesMicrobiome, 2022
Background Enteric methane emissions from dairy cows are an environmental problem as well as a gross feed energy loss to the animal. Methane is generated in the rumen by methanogenic archaea from hydrogen (H2) + carbon dioxide and from H2 + methanol or ...
Dipti W. Pitta   +10 more
doaj   +1 more source

Direct interspecies electron transfer enables anaerobic oxidation of sulfide to elemental sulfur coupled with CO2-reducing methanogenesis

open access: yesiScience, 2023
Summary: Electric syntrophy between fatty acid oxidizers and methanogens through direct interspecies electron transfer (DIET) is essential for balancing acidogenesis and methanogenesis in anaerobic digestion.
Heejung Jung, Hyeonjung Yu, Changsoo Lee
doaj   +1 more source

Biotechnological aspects of sulfate reduction with methane as electron donor [PDF]

open access: yes, 2010
Biological sulfate reduction can be used for the removal and recovery of oxidized sulfur compounds and metals from waste streams. However, the costs of conventional electron donors, like hydrogen and ethanol, limit the application possibilities.
Lens, P.N.L.   +2 more
core   +2 more sources

Hypotheses for near-surface exchange of methane on Mars [PDF]

open access: yes, 2016
The Curiosity rover recently detected a background of 0.7 ppb and spikes of 7 ppb of methane on Mars. This in situ measurement reorients our understanding of the Martian environment and its potential for life, as the current theories do not entail any ...
Bloom, A. Anthony   +4 more
core   +3 more sources

Relating Anaerobic Digestion Microbial Community and Process Function [PDF]

open access: yes, 2016
Anaerobic digestion (AD) involves a consortium of microorganisms that convert substrates into biogas containing methane for renewable energy. The technology has suffered from the perception of being periodically unstable due to limited understanding of ...
Bocher, Benjamin T.W.   +3 more
core   +3 more sources

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