Results 11 to 20 of about 40,687 (211)
Electron Bifurcation and Confurcation in Methanogenesis and Reverse Methanogenesis [PDF]
Frontiers in Microbiology, 2018 Reduction of the disulfide of coenzyme M and coenzyme B (CoMS-SCoB) by heterodisulfide reductases (HdrED and HdrABC) is the final step in all methanogenic pathways. Flavin-based electron bifurcation (FBEB) by soluble HdrABC homologs play additional roles in driving essential endergonic reactions at the expense of the exergonic reduction of CoMS-SCoM ...
Zhen Yan, James G. Ferry
openaire +4 more sources
Microbial methanogenesis in the sulfate-reducing zone of sediments in the Eckernförde Bay, SW Baltic Sea [PDF]
Biogeosciences, 2018 Benthic microbial methanogenesis is a known source of methane in marine systems. In most sediments, the majority of methanogenesis is located below the sulfate-reducing zone, as sulfate reducers outcompete methanogens for the major substrates hydrogen ...
Bange, Hermann W. +6 more
core +5 more sources
Hydrogenotrophic Methanogenesis Under Alkaline Conditions [PDF]
Frontiers in Microbiology, 2020 A cement-based geological disposal facility (GDF) is one potential option for the disposal of intermediate level radioactive wastes. The presence of both organic and metallic materials within a GDF provides the opportunity for both acetoclastic and hydrogenotrophic methanogenesis.
Richard M. Wormald +5 more
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Thermodynamic method for analyzing and optimizing pretreatment/anaerobic digestion systems [PDF]
Biofuel Research Journal, 2023 This paper builds a quantitative thermodynamic model for the microbial hydrolysis process (MHP, which uses Caldicellulosiruptor bescii at 75°C for pre-digestion) for producing biogas from a 5-10% aqueous suspension of dairy manure (naturally buffered ...
Lee D. Hansen
doaj +1 more source
Active methylotrophic methanogenesis by a microbial consortium enriched from a terrestrial meteorite impact crater. [PDF]
mBioMicrobial methane generation (methanogenesis) is an important metabolic process in the terrestrial deep biosphere and is an analog to early Earth as it is proposed to be one of the most ancient metabolisms on Earth.
van Dam F +9 more
europepmc +2 more sources
Current Biology, 2018 Methanogenesis is an anaerobic respiration that generates methane as the final product of metabolism. In aerobic respiration, organic matter such as glucose is oxidized to CO2, and O2 is reduced to H2O. In contrast, during hydrogenotrophic methanogenesis, H2 is oxidized to H+, and CO2 is reduced to CH4.
Zhe, Lyu +3 more
openaire +2 more sources
A variety of substrates for methanogenesis
Case Studies in Chemical and Environmental Engineering, 2023 The number of methanogenesis substrates known to date has increased more than six-fold since the late 80s, bringing to 152 the number of proven substrates for methanogenesis, plus 41 putative substrates predicted on the basis of ‘omic’ and biochemical ...
Marc Cozannet +2 more
doaj +1 more source
Frontiers in Microbiology, 2023 IntroductionAnaerobic oxidation of methane (AOM) is hypothesized to occur through reverse hydrogenotrophic methanogenesis in marine sediments because sulfate reducers pull hydrogen concentrations so low that reverse hydrogenotrophic methanogenesis is ...
Gage R. Coon +4 more
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Methane, 2022 This paper analyzes the mitigation of enteric methane (CH4) emissions from ruminants with the use of feed additives inhibiting rumen methanogenesis to limit the global temperature increase to 1.5 °C.
Emilio M. Ungerfeld
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Microbial methane formation in deep aquifers associated with the sediment burial history at a coastal site [PDF]
Biogeosciences, 2023 Elucidating the mechanisms underlying microbial methane formation in subsurface environments is essential to understanding the global carbon cycle. This study examined how microbial methane formation (i.e., methanogenesis) occurs in natural-gas-bearing ...
T. Katayama +3 more
doaj +1 more source