Results 81 to 90 of about 1,140,935 (221)

Homoacetogenesis and microbial community composition are shaped by pH and total sulfide concentration [PDF]

, 2019
Biological CO2 sequestration through acetogenesis with H-2 as electron donor is a promising technology to reduce greenhouse gas emissions. Today, a major issue is the presence of impurities such as hydrogen sulfide (H2S) in CO2 containing gases, as they ...
Arends, Jan, Chatzigiannidou, Ioanna, Ntagia, Eleftheria, Rabaey, Korneel, Williamson, Adam   +4 more
core   +2 more sources

Butyrate production in the acetogen Eubacterium limosum is dependent on the carbon and energy source

Microbial Biotechnology, 2021
Summary Eubacterium limosum KIST612 is one of the few acetogenic bacteria that has the genes encoding for butyrate synthesis from acetyl‐CoA, and indeed, E. limosum KIST612 is known to produce butyrate from CO but not from H2 + CO2.
Dennis Litty, Volker Müller
doaj   +1 more source

Trickle-Bed Bioreactors for Acetogenic H2/CO2 Conversion

Frontiers in Energy Research, 2022
Acetic acid is an essential industrial building block and can be produced by acetogenic bacteria from molecular hydrogen (H2) and carbon dioxide (CO2).
Franziska Steger, İpek Ergal, Armin Daubek, Nadine Loibl, Lydia Rachbauer, Lydia Rachbauer, Werner Fuchs, Simon K.-M. R. Rittmann, Günther Bochmann   +8 more
doaj   +1 more source

Metagenomic Insights Into the Ecology, Taxonomy and Metabolic Capabilities of ‘Candidatus Darwinibacteriales’ Ord. Nov. (Formerly MBA03), a Potential Key Player in Anaerobic Digestion

Microbial Biotechnology, Volume 18, Issue 12, December 2025.
Metagenomic analysis of anaerobic digesters revealed a dominant, uncultured bacterial taxon—MBA03—now proposed as ‘Candidatus Darwinibacteriales’ ord. nov. This newly defined order includes potential syntrophic acetate‐oxidising bacteria (SAOB), suggesting a key role in methane production.
Roser Puchol‐Royo, Javier Pascual, Asier Ortega‐Legarreta, Pascal Otto, Jeroen Tideman, Sjoerd‐Jan de Vries, Christian Abendroth, Kristie Tanner, Manuel Porcar, Adriel Latorre‐Perez   +9 more
wiley   +1 more source

Reducing Oxygen Stress and Improving Hydrogen Availability Boosts Microbial Electrosynthesis by Clostridium ljungdahlii

ChemSusChem, Volume 18, Issue 21, Novemebr 4, 2025.
Microbial electrosynthesis (MES) from CO2 by acetogens enables the production of value‐added chemicals. However, its current limitations include O2 stress and insufficient H2 availability. Using Clostridium ljungdahlii as a model in 1‐L electrobioreactors providing high process control, MES is boosted to unprecedent acetate concentrations and rates ...
Anne Kuchenbuch, Sara Al‐Sbei, Luis F. M. Rosa, Santiago T. Boto, Martin Westermann, Miriam A. Rosenbaum, Falk Harnisch   +6 more
wiley   +1 more source

Cobalamin‐Dependent Aryl Methyl Ether O‐Demethylases: Promising Enzymes for Biocatalytic Applications from Lignin Valorization to Organic Synthesis

ChemCatChem, Volume 17, Issue 21, November 10, 2025.
Cobalamin‐dependent aryl methyl ether O‐demethylases have high potential for biocatalytic applications, including lignin valorization and synthetic chemistry. In this review, we provide a detailed overview of such O‐demethylase systems identified to date from various microorganisms, including their mechanism, substrate scope and selectivity, and ...
Niels Krabbe Johnsen, Santipap Chaiyasarn, Zheng Guo, Jaehong Han, Bekir Engin Eser   +4 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

Optimization of carbon and energy utilization through differential translational efficiency. [PDF]

, 2018
Control of translation is vital to all species. Here we employ a multi-omics approach to decipher condition-dependent translational regulation in the model acetogen Clostridium ljungdahlii.
Al-Bassam, Mahmoud M, Gonzalez, David J, Kellman, Benjamin P, Kim, Ji-Nu, Wozniak, Jacob M, Zaramela, Livia S, Zengler, Karsten, Zuniga, Cristal   +7 more
core   +2 more sources

Application of MICP in ameliorating erosion resistance of soil on reservoir banks

River, Volume 4, Issue 4, Page 445-461, November 2025.
Abstract Regulating reservoirs with clay slopes are prone to severe erosion caused by wind‐wave actions and water‐level fluctuations. Conventional bank protection methods often rely on rigid structures, which can adversely affect ecosystems. This study explores the use of microbially induced carbonate precipitation (MICP) for soil stabilization to ...
Huiling Geng, Weiquan Zhao, Xiaodong Yang, Huan Zha, Yipin Wang   +4 more
wiley   +1 more source