Results 61 to 70 of about 917 (152)

CO₂fixation in acetogenic bacteria: Variations on a theme [PDF]

FEMS Microbiology Letters, 1986
An increasing number of strict anaerobic bacteria are being found which use an alternative pathway to the ubiquitous Calvin cycle for CO2 fixation into cell compounds and the ubiquitous Krebs cycle for acetyl CoA oxidation to CO2. The principles of this non-cyclic pathway, the acetyl CoA pathway, have long been studied in acetogenic bacteria.
openaire   +1 more source

Acetogenic Methane‐Carbon Monoxide Comproportionation: An Exergonic but Unobserved Microbial Metabolism

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Microbial metabolism relies on redox reactions that exploit chemical disequilibria. While aerobic carbon oxidation, carbon fixation, and fermentation are well studied, the broader space of anaerobic carbon redox reactions remains underexplored.
Heidi S. Aronson, William D. Leavitt, Douglas E. LaRowe   +2 more
wiley   +1 more source

Emerging Technologies for Biobutanol Production via Syngas Fermentation

GCB Bioenergy, Volume 18, Issue 5, May 2026.
Biobutanol production from syngas is promising but limited by microbial energy conservation and gas–liquid mass transfer. This review integrates advances in cultivation control and bioreactor engineering with next‐generation biological tools including metabolic rewiring, co‐cultivation and chain elongation, and electro‐fermentation to enable carbon ...
Xuemei Wang, Luiza C. Campos, Zifu Li, Werner Fuchs   +3 more
wiley   +1 more source

Advancement in Anaerobic Digestion for Scaling‐Up Biogas Production Through Food Waste Valorization

ChemBioEng Reviews, Volume 13, Issue 2, April 2026.
The review article begins with an introduction that covers the overview, food waste (FW) classification, and the steps involved in producing biogas through anaerobic digestion (AD). Following that, it describes the process for producing biogas, including single‐, two‐, and multistage systems, mesophilic and thermophilic digestion, and wet and dry ...
Poulami Chatterjee, Nabanita Saha, Petr Sáha   +2 more
wiley   +1 more source

Genomic and Transcriptomic Insights Into the Autotrophic Metabolism on H2 + CO2 or CO of the Thermophilic Acetogenic Model Organism Moorella thermoacetica

Environmental Microbiology, Volume 28, Issue 4, April 2026.
Moorella thermoacetica is the model organism for elucidation of acetogenesis. The reduction of CO2 to acetate is well studied, but how redox carrier balancing and energy conservation are maintained during autotrophic growth and how H2 is oxidised remains enigmatic.
Florian P. Rosenbaum, Anja Poehlein, Rolf Daniel, Volker Müller   +3 more
wiley   +1 more source

Bioprocesses for the treatment and valorisation of gas emissions, odours, volatile compounds and greenhouse gases

Frontiers in Environmental Engineering
Different bioprocesses for the treatment as well as the valorisation of waste gases and greenhouse gases are briefly reviewed. Biotreatment technologies are based on the use of bioreactors for waste gas treatment, e.g., biofilter, biotrickling filter ...
Cecilia Naveira-Pazos, María C. Veiga, Christian Kennes   +2 more
doaj   +1 more source

Formic Acid Formation by Clostridium ljungdahlii at Elevated Pressures of Carbon Dioxide and Hydrogen

Frontiers in Bioengineering and Biotechnology, 2018
Low productivities of bioprocesses using gaseous carbon and energy sources are usually caused by the low solubility of those gases (e.g., H2 and CO).
Florian Oswald, I. Katharina Stoll, Michaela Zwick, Sophia Herbig, Jörg Sauer, Nikolaos Boukis, Anke Neumann   +6 more
doaj   +1 more source

Methane Generation Using an Anaerobic Biodigester From Waste Leachate Water

Asia-Pacific Journal of Chemical Engineering, Volume 21, Issue 2, March/April 2026.
ABSTRACT Leachate wastewater (LWW) is characterized by slow biodegradation and low biogas production due to resistant materials and limited biological activity. Therefore, applying pretreatments is essential to improving biodegradation potential, which consequently boosts energy recovery.
Khairi R. Kalash, Nisreen S. Ali, Mustafa H. Al‐Furaiji, Mahir A. Abdulrahman, Talib M. Albayati, Buthainah Ali Al‐Timimi   +5 more
wiley   +1 more source

Increasing the succinate yield in Actinobacillus succinogenes by fumigation of H2 in a bioreactor

Biofuels, Bioproducts and Biorefining, Volume 20, Issue 2, Page 591-605, March/April 2026.
Abstract The microbial conversion of CO2 into value‐added chemicals offers a promising and scalable route for sustainable bioproduction, particularly under mild reaction conditions and with technically straightforward reactor configurations. Actinobacillus succinogenes, a natural succinate producer, can fix CO2 through anaplerotic carboxylation but its
Julian Tix, Gustav Zimpel, Roland Ulber, Nils Tippkötter   +3 more
wiley   +1 more source

Microbiological surveillance of biogas plants : focusing on the acetogenic community [Elektronisk resurs]

, 2021
Biogas process has great potential for reducing the current dependence on fossil fuels and for climate mitigation and sustainable development. In this process organic matter is decomposed under anerobic conditions by microorganisms to form biogas and a ...
Singh, Abhijeet,, Sveriges lantbruksuniversitet.   +1 more
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