Results 11 to 20 of about 3,492 (201)

Methanogenesis and Acetogenesis in Hydrogenotrophy with Carbonate Minerals: Dependence on Mineral Surface Area, Biofilm Growth, and Microbial Community. [PDF]

open access: yesEnviron Sci Technol
The production, storage, and use of hydrogen are anticipated to grow substantially to achieve energy and climate goals. Consequently, microbial communities in many terrestrial and subsurface Earth environments could be exposed to elevated hydrogen ...
Qi Y   +7 more
europepmc   +2 more sources

Potential contribution of acetogenesis to anaerobic degradation in methanogenic rice field soils

open access: yesSoil Biology and Biochemistry, 2018
Acetate is an important intermediate in the anaerobic degradation of organic matter. It is not only produced by fermentation but also by the reduction of CO2 via the acetyl-CoA pathway (acetogenesis).
Bo Fu, Ralf Conrad, Martin Blaser
exaly   +2 more sources

Genome-Scale Analysis of Acetobacterium woodii Identifies Translational Regulation of Acetogenesis

open access: yesmSystems, 2021
Acetogens synthesize acetyl-CoA via the CO2-fixing Wood-Ljungdahl pathway. Despite their ecological and biotechnological importance, their translational regulation of carbon and energy metabolisms remains unclear.
Jongoh Shin   +8 more
doaj   +5 more sources

Metabolic Potential for Reductive Acetogenesis and a Novel Energy-Converting [NiFe] Hydrogenase in Bathyarchaeia From Termite Guts – A Genome-Centric Analysis

open access: yesFrontiers in Microbiology, 2021
Symbiotic digestion of lignocellulose in the hindgut of higher termites is mediated by a diverse assemblage of bacteria and archaea. During a large-scale metagenomic study, we reconstructed 15 metagenome-assembled genomes of Bathyarchaeia that represent ...
Hui Qi Loh   +2 more
doaj   +2 more sources

Competition Between Chemolithotrophic Acetogenesis and Hydrogenotrophic Methanogenesis for Exogenous H2/CO2 in Anaerobically Digested Sludge: Impact of Temperature

open access: yesFrontiers in Microbiology, 2019
Anaerobic digestion is a widely applied technology for sewage sludge treatment. Hydrogen and CO2 are important degradation products, which serve as substrates for both hydrogenotrophic methanogenesis and chemolithotrophic acetogenesis.
Bo Fu   +8 more
doaj   +2 more sources

New insight into waste activated sludge acetogenesis triggered by coupling sulfite/ferrate oxidation with sulfate reduction-mediated syntrophic consortia

open access: yesChemical Engineering Journal, 2020
Acetate (HAc) production via acetogenesis is a promising biorefinery approachfor waste activated sludge (WAS); however, it is hampered by the thermodynamicconstraints of the bioconversion of 3-5 carbon atom short-chain fatty acids (SCFAs).
Aijuan Zhou   +2 more
exaly   +2 more sources

Bioaugmentation in anaerobic digesters: a systematic review [PDF]

open access: yesBiotechnology for Biofuels and Bioproducts
Bioaugmentation, the intentional introduction of specific microorganisms into anaerobic digestion (AD) systems, has shown promise in enhancing methane production and in mitigating stressful conditions, particularly in systems operating below optimal ...
Mozhdeh Alipoursarbani   +3 more
doaj   +2 more sources

Acetogenesis does not replace ketogenesis in fasting piglets infused with hexanoate

open access: yesAmerican Journal of Physiology-Endocrinology and Metabolism, 1998
The current studies were performed to better understand the physiological relevance of acetate in the poorly ketogenic piglet and to determine if endogenous acetogenesis rises with increased mitochondrial fatty acid β-oxidation, analogous to ketogenesis.
Sean H. Adams, Jack Odle
core   +3 more sources

A theoretical comparison between two ruminal electron sinks

open access: yesFrontiers in Microbiology, 2013
Dihydrogen accumulation resulting from methanogenesis inhibition in the rumen is an energy loss and can inhibit fermentation. The objective of this analysis was to compare the energetic and nutritional consequences of incorporating H2 into reductive ...
Emilio M. Ungerfeld
doaj   +2 more sources

Acetogenesis at Low Temperature

open access: yes, 1994
Most habitats on earth have a low average annual temperature, and more than 80% of the biosphere is permanently cold. In general, the study of mesophilic processes have dominated the interests of biologists. However, though poorly characterized, microbial processes in cold climatic zones may play important roles in the biological cycles and global ...
Alla N. Nozhevnikova   +2 more
core   +2 more sources

Home - About - Disclaimer - Privacy