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The role of acetogens in microbially influenced corrosion of steel [PDF]
Frontiers in Microbiology, 2014 Microbially influenced corrosion (MIC) of iron (Fe(0)) by sulfate-reducing bacteria (SRB) has been studied extensively. Through a mechanism, that is still poorly understood, electrons or hydrogen (H2) molecules are removed from the metal surface and used as electron donor for sulfate reduction.
Gerrit Voordouw +2 more
exaly +4 more sources
Processes, 2020 Biohydrogen production by fermentation has become a promising technology developed in the world. In this study, diluted normal molasses wastewater is used as the raw material, and biohydrogen production efficiency and operation characteristics of an ...
Ji Li, Shuo Wang
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Acetogen and acetogenesis for biological syngas valorization
Bioresource Technology, 2023The bioconversion of syngas using (homo)acetogens as biocatalysts shows promise as a viable option due to its higher selectivity and milder reaction conditions compared to thermochemical conversion. The current bioconversion process operates primarily to produce C2 chemicals (e.g., acetate and ethanol) with sufficient technology readiness levels (TRLs)
Ji-Yeon, Kim +5 more
openaire +2 more sources
Competition and coexistence of sulfate-reducing bacteria, acetogens and methanogens in a lab-scale anaerobic bioreactor as affected by changing substrate to sulfate ratio [PDF]
Applied Microbiology and Biotechnology, 2008 The microbial population structure and function of natural anaerobic communities maintained in lab-scale continuously stirred tank reactors at different lactate to sulfate ratios and in the absence of sulfate were analyzed using an integrated approach of
Robbert Kleerebezem +2 more
exaly +3 more sources
Sugar phosphorylation activity in ruminal acetogens
Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering, 2012Acetogenic bacteria Acetitomaculum ruminis, Acetobacterium woodii, and Eubacterium limosum were compared for phosphoenolpyruvate (PEP) and ATP-dependent phosphorylation of glucose and 2-deoxy-glucose. Rate of phosphorylation activity was measured in toluene-treated acetogenic cells using PEP and ATP and radiolabled glucose or 2-deoxy glucose ...
J A Patterson
exaly +3 more sources
General medium for the autotrophic cultivation of acetogens
Bioprocess and Biosystems Engineering, 2016Syngas fermentation, a microbial process in which synthesis gas serves as a substrate for acetogens, has attracted increasing interest in the last few years. For the purposeful selection of acetogens for various applications, it would be useful to characterize and compare the process performances of as many autotrophic strains as possible under ...
Anna, Groher, Dirk, Weuster-Botz
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Limitation of syntrophic coculture growth by the acetogen
Biotechnology and Bioengineering, 2015ABSTRACTThe syntrophic cooperation between hydrogen‐producing acetogens and hydrogenotrophic methanogens relies on a critical balance between both partners. A recent study, provided several indications for the dependence of the biomass‐specific growth rate of a methanogenic coculture on the acetogen.
Helena, Junicke +3 more
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A Phylogenetic Assessment of the Acetogens
1994Our first collaborative foray into molecular systematics was a phylogenetic examination of the acetogens, beginning in 1979. Following the discovery that a physiologically defined group of microorganisms, the methanogens, corresponded to a phylogenetically coherent group (Balch et al., 1977), it was natural to ask the question whether the acetogens ...
Ralph S. Tanner, Carl R. Woese
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Halophilic Acetogenic Bacteria
1994As outlined in preceding chapters of this book, acetogenic bacteria have a specialized physiological potential for the conservation of energy via the reduction of CO2 to acetate. They also harbor diverse catabolic processes and are found in unusual habitats.
George A. Zavarzin +2 more
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Acetogenic Bacteria for Biotechnological Applications
2020Acetogenic bacteria are a group of strictly anaerobic bacteria that employ the Wood–Ljungdahl pathway to reduce two molecules of CO2 to acetyl-CoA, the central intermediate to various chemical compounds such as acetate, ethanol or butyrate. The capability of acetogens to utilize a wide range of substrates including industrial waste gas, methanol ...
Dennis Litty, Volker Müller
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