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Acetogenesis in the Energy-Starved Deep Biosphere – A Paradox? [PDF]
Frontiers in Microbiology, 2012 Under anoxic conditions in sediments, acetogens are often thought to be outcompeted by microorganisms performing energetically more favorable metabolic pathways, such as sulfate reduction or methanogenesis. Recent evidence from deep subseafloor sediments
Mark A. Lever
exaly +8 more sources
Enhanced Acetogenesis of Waste Activated Sludge by Conditioning With Processed Organic Wastes in Co-Fermentation: Kinetics, Performance and Microbial Response [PDF]
Energies, 2020 Aimed at the low ratio of carbon and nitrogen (C/N, approximately 7/1) of waste activated sludge (WAS), which would inhibit the acetogenesis process during anaerobic fermentation, this study introduced three brewing wastes, including vinegar (VR ...
Cristiano Varrone +2 more
exaly +4 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 +8 more
doaj +5 more sources
Methods of Pretreating Raw Materials Containing Organic Compounds before Anaerobic Digestion
Инженерные технологии и системы, 2022 Introduction. The volume of accumulated organ-containing non-recyclable waste products in Russia is increasing. Existing technologies make it possible to recycle these waste products through using anaerobic digestion to produce biogas and fertilizers ...
Viktor V. Palvinskiy +2 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 +5 more
doaj +1 more source
Insects, 2023 Termites’ digestive systems, particularly in lower termites with the presence of protozoa, are unique ecological niches that shelter a diverse microbiota with a variety of functions for the host and the environment.
Thi Huyen Do +3 more
doaj +1 more source
mBio, 2020 A longstanding conundrum in Treponema pallidum biology concerns how the spirochete generates sufficient energy to fulfill its complex pathogenesis processes during human syphilitic infection.
Ranjit K. Deka +3 more
doaj +1 more source
Investigation of phase equations for anaerobic digestion process of anaerobic bioreactor landfill [PDF]
E3S Web of Conferences, 2020 The anaerobic digestion process consists of four phases hydrolysis, acidogenesis, acetogenesis and methanogenesis. In the present work anaerobic digestion process of waste from anaerobic bioreactor landfill is considered and leachate is analyzed ...
Shinde Priyanka R., Mali Sandip. T.
doaj +1 more source
Microorganisms, 2020 Biodesulfurization processes remove toxic and corrosive hydrogen sulfide from gas streams (e.g., natural gas, biogas, or syngas). To improve the efficiency of these processes under haloalkaline conditions, a sulfate and thiosulfate reduction step can be ...
Caroline M. Plugge +6 more
doaj +1 more source
Obligate autotrophy at the thermodynamic limit of life in a new acetogenic bacterium
Frontiers in Microbiology, 2023 One of the important current issues of bioenergetics is the establishment of the thermodynamic limits of life. There is still no final understanding of what is the minimum value of the energy yield of a reaction that is sufficient to be used by an ...
Evgenii N. Frolov +6 more
doaj +1 more source