Results 71 to 80 of about 1,126 (171)

Adaptation of the acetogen Clostridium thermoautotrophicum to minimal medium [PDF]

Journal of Bacteriology, 1986
Clostridium thermoautotrophicum was adapted to minimal medium and cultivated at the expense of glucose, methanol, or H2-CO2. No supplemental amino acids were required for growth of the adapted strain, and nicotinic acid was the sole essential vitamin.
M D, Savage, H L, Drake
openaire   +2 more sources

A Pore or not a Pore? Understanding Pore Size Distributions of Non‐Graphitic Carbon and Atomically‐Dispersed M‐N‐C Materials

Advanced Science, Volume 13, Issue 50, 7 September 2026.
Gassorption analysis of in‐plane functionalized carbons reveals small, uniform ultramicropore signatures as potential artefacts of specific adsorption of the probe gases. Low‐pressure Langmuir fitting links these features to distinct functionalities via adsorption energies, enabling straightforward quantification of otherwise inaccessible surface‐site ...
Simon W. J. Dietzmann, Asad Mehmood, Jian Liang Low, Shu‐Han Wu, Carsten Prinz, Ana Guilherme Buzanich, Jörg Radnik, Paul A. Appel, Franziska Emmerling, Tim‐Patrick Fellinger   +9 more
wiley   +1 more source

Purification and characterization of a thermophilic NAD+‐dependent lactate dehydrogenase from Moorella thermoacetica

FEBS Open Bio
Oxidation of lactate under anaerobic dark fermentative conditions poses an energetic problem. The redox potential of the lactate/pyruvate couple is too electropositive to reduce the physiological electron carriers NAD(P)+ or ferredoxin.
Florian P. Rosenbaum, Volker Müller
doaj   +1 more source

The pyruvate:ferredoxin oxidoreductase of the thermophilic acetogen, Thermoanaerobacter kivui

FEBS Open Bio, 2021
Pyruvate:ferredoxin oxidoreductase (PFOR) is a key enzyme in bacterial anaerobic metabolism. Since a low‐potential ferredoxin (Fd2−) is used as electron carrier, PFOR allows for hydrogen evolution during heterotrophic growth as well as pyruvate synthesis
Alexander Katsyv, Marie Charlotte Schoelmerich, Mirko Basen, Volker Müller   +3 more
doaj   +1 more source

Cobalamin‐Dependent O‐Demethylation of Polymethoxyflavones by Enzymes Isolated From the Human Gut Microorganism Blautia producta MRG‐PMF1

Advanced Synthesis &Catalysis, Volume 368, Issue 16, 18 August 2026.
O‐demethylation of aryl methyl ethers is an invaluable transformation, playing a critical role in ecological circulation by degrading abundant lignin‐derived compounds and other natural products. Chemical O‐demethylation requires harsh reaction conditions; thus, the need for biocatalytic solutions is of high interest.
Niels Krabbe Johnsen, Mykola Franchuk, Freja Elisabeth Wind Rasmussen, Zheng Guo, Jaehong Han, Bekir Engin Eser   +5 more
wiley   +1 more source

Bridging Liquid and Gas Phase Catalysis for Abiotic CO2 Conversion to Prebiotic Organics Over Mesoporous Silica‐Supported Ni–Co Catalysts

Advanced Synthesis &Catalysis, Volume 368, Issue 11, 3 June 2026.
Under simulated hydrothermal vent conditions, Ni⋅Co bimetallic catalysts supported on silica convert CO2 and H2O into key metabolites such as formate, methanol, and ethanol. Water plays a critical role in CO2 adsorption and product selectivity, shaping catalytic performance across both liquid and gas phases.
Yingrui Zhao, Nicholas F. Dummer, Kieran J. Aggett, Graham J. Hutchings, William F. Martin, Harun Tüysüz   +5 more
wiley   +1 more source

Reductive acetogens isolated from ruminants and their effect on in vitro methane mitigation and milk performance in Holstein cows

Journal of Animal Science and Technology, 2020
This study was designed to evaluate the in vitro and in vivo effects of reductive acetogens isolated from ruminants on methane mitigation, and milk performance, respectively. Four acetogens,
Seon-Ho Kim, Lovelia L Mamuad, Mahfuzul Islam, Sang-Suk Lee   +3 more
doaj   +1 more source

A Comprehensive Review of the Key Factors Affecting Biogas Production From Anaerobic Digestion of Organic Waste

CleanMat, Volume 3, Issue 2, Page 74-98, June 2026.
Efficient conversion of organic waste to biogas depends on the coordinated optimization of feedstock composition, pretreatment, operational parameters, reactor design, and microbial community dynamics. This review highlights how these interacting factors improve methane yield and process stability, advancing anaerobic digestion as a practical pathway ...
Ahmed Alengebawy, Yi Ran, Sara Taha Abdelkhalek, Tarek Mahrous, Ahmed Ragheb, Mohamed Samer, Ping Ai   +6 more
wiley   +1 more source

Metagenomic Exploration Uncovers Several Novel ‘Candidatus’ Species Involved in Acetate Metabolism in High‐Ammonia Thermophilic Biogas Processes

Microbial Biotechnology
Biogas reactors operating at elevated ammonia levels are commonly susceptible to process disturbances, further augmented at thermophilic temperatures.
George B. Cheng, Erik Bongcam‐Rudloff, Anna Schnürer   +2 more
doaj   +1 more source

The energy-converting hydrogenase Ech2 is important for the growth of the thermophilic acetogen Thermoanaerobacter kivui on ferredoxin-dependent substrates

Microbiology Spectrum
Thermoanaerobacter kivui is the thermophilic acetogenic bacterium with the highest temperature optimum (66°C) and with high growth rates on hydrogen (H2) plus carbon dioxide (CO2).
Christoph Baum, Benjamin Zeldes, Anja Poehlein, Rolf Daniel, Volker Müller, Mirko Basen   +5 more
doaj   +1 more source