Results 21 to 30 of about 2,883 (134)

Emerging Technologies for Biobutanol Production via Syngas Fermentation

GCB Bioenergy
Biobutanol offers significant advantages over ethanol as an advanced biofuel, but its large‐scale production via syngas fermentation faces critical challenges including low product titers, carbon inefficiency, and microbial toxicity.
Xuemei Wang, Luiza C. Campos, Zifu Li, Werner Fuchs   +3 more
doaj   +2 more sources

Microbial Electrosynthesis Reshapes Energy Metabolism and Physiology in Clostridium ljungdahlii. [PDF]

Microb Biotechnol
Microbial electrosynthesis drives Clostridium ljungdahlii into a distinct stress‐associated physiological state, different from gas fermentation. Comparative multi‐omics and electron microscopy reveal physiological constraints that help explain the poor performance of MES.
Al Sbei S, Boto ST, Krüger T, Papenfort K, Westermann M, Jost A, Harnisch F, Brakhage AA, Rosenbaum MA.   +8 more
europepmc   +2 more sources

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

mSystems, 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, Yoseb Song, Seulgi Kang, Sangrak Jin, Jung-Kul Lee, Dong Rip Kim, Suhyung Cho, Volker Müller, Byung-Kwan Cho   +8 more
doaj   +1 more source

Four families of folate-independent methionine synthases.

PLoS Genetics, 2021
Although most organisms synthesize methionine from homocysteine and methyl folates, some have "core" methionine synthases that lack folate-binding domains and use other methyl donors.
Morgan N Price, Adam M Deutschbauer, Adam P Arkin   +2 more
doaj   +1 more source

Cell-free prototyping enables implementation of optimized reverse β-oxidation pathways in heterotrophic and autotrophic bacteria

Nature Communications, 2022
An attractive route for carbon-negative synthesis of biochemical products is the reverse β-oxidation pathway coupled to the Wood-Ljungdahl pathway.
Bastian Vögeli, Luca Schulz, Shivani Garg, Katia Tarasava, James M. Clomburg, Seung Hwan Lee, Aislinn Gonnot, Elamar Hakim Moully, Blaise R. Kimmel, Loan Tran, Hunter Zeleznik, Steven D. Brown, Sean D. Simpson, Milan Mrksich, Ashty S. Karim, Ramon Gonzalez, Michael Köpke, Michael C. Jewett   +17 more
doaj   +1 more source

Syntrophic Acetate-Oxidizing Microbial Consortia Enriched from Full-Scale Mesophilic Food Waste Anaerobic Digesters Showing High Biodiversity and Functional Redundancy

mSystems, 2022
Syntrophic acetate oxidation (SAO) coupled with hydrogenotrophic methanogenesis (HM) plays a vital role in the anaerobic digestion of protein-rich feedstocks such as food wastes. However, current knowledge of the biodiversity and genetic potential of the
Chao Li, Liping Hao, Fan Lü, Haowen Duan, Hua Zhang, Pinjing He   +5 more
doaj   +1 more source

Ancient Metabolisms of a Thermophilic Subseafloor Bacterium

Frontiers in Microbiology, 2021
The ancient origins of metabolism may be rooted deep in oceanic crust, and these early metabolisms may have persisted in the habitable thermal anoxic aquifer where conditions remain similar to those when they first appeared.
Amy R. Smith, Amy R. Smith, Amy R. Smith, Ryan Mueller, Martin R. Fisk, Frederick S. Colwell   +5 more
doaj   +1 more source

Moorella thermoacetica: A promising cytochrome- and quinone-containing acetogenic bacterium as platform for a CO2-based bioeconomy

Green Carbon, 2023
The negative effect of fossil-based industrial processes on the environment, especially the contribution to global warming by emitting greenhouse gases such as CO2 causes a global threat to mankind. Therefore, technologies are demanded by the society for
Florian P. Rosenbaum, Volker Müller
doaj   +1 more source

Defining Genomic and Predicted Metabolic Features of the Acetobacterium Genus

mSystems, 2020
Acetogens are anaerobic bacteria capable of fixing CO2 or CO to produce acetyl coenzyme A (acetyl-CoA) and ultimately acetate using the Wood-Ljungdahl pathway (WLP).
Daniel E. Ross, Christopher W. Marshall, Djuna Gulliver, Harold D. May, R. Sean Norman   +4 more
doaj   +1 more source

A Heterodimeric Reduced-Ferredoxin-Dependent Methylenetetrahydrofolate Reductase from Syngas-Fermenting Clostridium ljungdahlii

Microbiology Spectrum, 2021
The strict anaerobe Clostridium ljungdahlii can ferment CO or H2/CO2 via the Wood-Ljungdahl pathway to acetate, ethanol, and 2,3‐butanediol. This ability has attracted considerable interest, since it can be used for syngas fermentation to produce ...
Jihong Yi, Haiyan Huang, Jiyu Liang, Rufei Wang, Ziyong Liu, Fuli Li, Shuning Wang   +6 more
doaj   +1 more source