Results 81 to 90 of about 1,079 (172)

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

Acetogenic Fermentation From Oxygen Containing Waste Gas

Frontiers in Bioengineering and Biotechnology, 2019
The microbial production of bulk chemicals from waste gas is becoming a pertinent alternative to industrial strategies that rely on fossil fuels as substrate.
Teresa Mohr, Alba Infantes, Lars Biebinger, Pieter de Maayer, Anke Neumann   +4 more
doaj   +1 more source

Electrobiocorrosion by microbes without outer‐surface cytochromes

mLife
Anaerobic microbial corrosion of iron‐containing metals causes extensive economic damage. Some microbes are capable of direct metal‐to‐microbe electron transfer (electrobiocorrosion), but the prevalence of electrobiocorrosion among diverse methanogens ...
Dawn E. Holmes, Trevor L. Woodard, Jessica A. Smith, Florin Musat, Derek R. Lovley   +4 more
doaj   +1 more source

Improving Carbon Fixation and Acetate Production from Syngas Fermentation: On-Demand Versus Continuous Feeding

Fermentation
Syngas fermentation is a promising carbon capture and utilization (CCU) technology for producing carboxylic acids while transforming low-cost waste gas into high-value products. This study evaluates the two bioreactor feeding strategies for synthesis gas
Marta Pacheco, Tiago P. Silva, Carla Silva, Patrícia Moura   +3 more
doaj   +1 more source

A TetR-Family Protein (CAETHG_0459) Activates Transcription From a New Promoter Motif Associated With Essential Genes for Autotrophic Growth in Acetogens

Frontiers in Microbiology, 2019
Acetogens can fix carbon (CO or CO2) into acetyl-CoA via the Wood–Ljungdahl pathway (WLP) that also makes them attractive cell factories for the production of fuels and chemicals from waste feedstocks.
Renato de Souza Pinto Lemgruber, Kaspar Valgepea, Kaspar Valgepea, Ricardo Axayacatl Gonzalez Garcia, Christopher de Bakker, Robin William Palfreyman, Robin William Palfreyman, Ryan Tappel, Michael Köpke, Séan Dennis Simpson, Lars Keld Nielsen, Esteban Marcellin, Esteban Marcellin   +12 more
doaj   +1 more source

Optimization of carbon and energy utilization through differential translational efficiency

Nature Communications, 2018
Microorganisms must regulate allocation of resources in nutrient-limited conditions. Here, the authors combine Ribo-seq, RNA-seq and TSS-seq to study resource allocation in the acetogen C.
Mahmoud M. Al-Bassam, Ji-Nu Kim, Livia S. Zaramela, Benjamin P. Kellman, Cristal Zuniga, Jacob M. Wozniak, David J. Gonzalez, Karsten Zengler   +7 more
doaj   +1 more source

Low electric current in a bioelectrochemical system facilitates ethanol production from CO using CO-enriched mixed culture

Frontiers in Microbiology
Fossil resources must be replaced by renewable resources in production systems to mitigate green-house gas emissions and combat climate change. Electro-fermentation utilizes a bioelectrochemical system (BES) to valorize industrial and municipal waste ...
Chaeho Im, Minsoo Kim, Jung Rae Kim, Kaspar Valgepea, Oskar Modin, Yvonne Nygård, Yvonne Nygård, Carl Johan Franzén   +7 more
doaj   +1 more source

Isolation and characterization of novel acetogenic strains of the genera Terrisporobacter and Acetoanaerobium

Frontiers in Microbiology
Due to their metabolic versatility in substrate utilization, acetogenic bacteria represent industrially significant production platforms for biotechnological applications such as syngas fermentation, microbial electrosynthesis or transformation of one ...
Tim Böer, Miriam Antonia Schüler, Alina Lüschen, Lena Eysell, Jannina Dröge, Melanie Heinemann, Lisa Engelhardt, Mirko Basen, Rolf Daniel, Anja Poehlein   +9 more
doaj   +1 more source

Predicting proteome allocation, overflow metabolism, and metal requirements in a model acetogen.

PLoS Computational Biology, 2019
The unique capability of acetogens to ferment a broad range of substrates renders them ideal candidates for the biotechnological production of commodity chemicals.
Joanne K Liu, Colton Lloyd, Mahmoud M Al-Bassam, Ali Ebrahim, Ji-Nu Kim, Connor Olson, Alexander Aksenov, Pieter Dorrestein, Karsten Zengler   +8 more
doaj   +1 more source