Results 101 to 110 of about 3,032 (195)

The Impact of a NiFe-Based Metal Alloy on CO₂ Conversion to CH₄ and Carboxylic Acids in a Microbial Electrosynthesis Cell

Methane
This study assessed the effects of NiFe-based metal catalysts on CO2 conversion to methane (CH4) and carboxylic acids in microbial electrosynthesis (MES) cells.
Emmanuel Nwanebu, Sabahudin Hrapovic, Fabrice Tanguay-Rioux, Rihab Gharbi, Boris Tartakovsky   +4 more
doaj   +1 more source

Production of the biocommodities butanol and acetone from methanol with fluorescent FAST-tagged proteins using metabolically engineered strains of Eubacterium limosum

Biotechnology for Biofuels, 2021
Background The interest in using methanol as a substrate to cultivate acetogens increased in recent years since it can be sustainably produced from syngas and has the additional benefit of reducing greenhouse gas emissions.
Maximilian Flaiz, Gideon Ludwig, Frank R. Bengelsdorf, Peter Dürre   +3 more
doaj   +1 more source

Ciprofloxacin, diclofenac, ibuprofen and 17α-ethinylestradiol differentially affect the activity of acetogens and methanogens in anaerobic communities [PDF]

, 2020
Pharmaceutical compounds end up in wastewater treatment plants but little is known on their effect towards the different microbial groups in anaerobic communities.
Pereira, Luciana, Martins, Gilberto, Costa, Joana Sofia Gomes, Salvador, Andreia Filipa Ferreira, Alves, M. M., Silva, Ana Rita Pereira   +5 more
core   +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

Acetogens and acetoclastic methanosarcinales govern methane formation in abandoned coal mines. [PDF]

, 2011
In abandoned coal mines, methanogenic archaea are responsible for the production of substantial amounts of methane. The present study aimed to directly unravel the active methanogens mediating methane release as well as active bacteria potentially ...
Engelen, B., Beckmann, S., Bert Engelen, Martin Krüger, Cypionka, H., Lüders, T., Krüger, M., von Netzer, F., Sabrina Beckmann, Heribert Cypionka, Tillmann Lueders, Frederick von Netzer   +11 more
core   +1 more source

Robust Performance of Sub‐Thermophilic Anaerobic Digestion Enabled by Microbial Functional Redundancy

Advanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
We tested whether anaerobic digesters could operate at lower temperatures without losing methane production. Pilot‐scale reactors were run at 48°C or 55°C. Methane yields and gas quality were similar. Lower temperatures reduced volatile fatty acids and supported more diverse microbial communities.
Richard K. Tennant, Olukayode Kuloyo, Andrew G. Moody, Jose R. Lopez, Ashley V. Baugh, Jason R. Jiminez, Gabrielle R. Joslin, Damian J. Allen, Phillip G. Hamilton, David A. Parker, Jeffrey R. Fedenko   +10 more
wiley   +1 more source

Volumetric mass transfer and dilution rate as key parameters for sustainable industrial syngas fermentation to isopropyl alcohol: modeling and parametric assessment

Biofuels, Bioproducts and Biorefining, Volume 20, Issue 2, Page 473-486, March/April 2026.
Abstract Synthesis gas fermentation is a promising route for the valorization of steel mill off‐gas and for replacing conventional fossil‐based isopropyl alcohol (IPA) production. A recent 120 L pilot‐scale study reported 85% gas conversion at 90% product selectivity and claimed a negative global warming potential (GWP) without detailed process design.
Gijs J. A. Brouwer, Melvin J. G. Lourdusamy, Misza Jansen, John A. Posada   +3 more
wiley   +1 more source

The Prebiotic and Techno‐Functional Potential of Microbial Exopolysaccharides for Human Health and Food Systems

Comprehensive Reviews in Food Science and Food Safety, Volume 25, Issue 2, March 2026.
ABSTRACT Microbial exopolysaccharides (EPS) represent a diverse class of biopolymers holding considerable promise as functional food ingredients. This review analyzes the dual function of microbial EPS as a candidate for prebiotic agents and techno‐functional additives.
Md. Abdur Razzak, Hye Kim, Md. Ariful Haque, Min Ji Jang, Sehyeon Song, Anishka Talari, Lakshmi Devi Chittepu, Seockmo Ku   +7 more
wiley   +1 more source

Acetogenesis in the energy-starved deep biosphere – a paradox?

Frontiers in Microbiology, 2012
Under anoxic conditions in sediments, acetogens are often thought to be outcompeted by microorganisms performing energetically more favorable metabolic pathways, such as sulfate reduction or methanogenesis. Recent evidence from deep subseafloor sediments
Mark Alexander Lever
doaj   +1 more source

Metabolic versatility of acetogens in syngas fermentation: responding to varying CO availability [PDF]

Syngas fermentation using acetogenic bacteria offers a promising route for sustainable chemical production. However, gasliquid mass transfer limitations and efficient co-utilization of CO and H2 pose significant challenges.
Domingues, Lucília, Alves, Joana I., Moreira, João Paulo Carvalho   +2 more
core   +1 more source