Results 21 to 30 of about 3,492 (201)

Mitigating methane emissions and promoting acetogenesis in ruminant livestock

open access: yesFrontiers in Animal Science
Through enteric fermentation, ruminants convert fibrous biomass into high-quality proteins like meat and milk. In this process however, methanogenic archaea in the ruminant gastrointestinal tract produce methane, a potent greenhouse gas, from the by ...
Rehema Iddi Mrutu   +5 more
doaj   +2 more sources

Determination of Microbial Maintenance in Acetogenesis and Methanogenesis by Experimental and Modeling Techniques [PDF]

open access: yesFrontiers in Microbiology, 2019
For biogas-producing continuous stirred tank reactors, an increase in dilution rate increases the methane production rate as long as substrate input can be converted fully. However, higher dilution rates necessitate higher specific microbial growth rates,
Fabian Bonk   +15 more
core   +5 more sources

Acetogenesis to ethanologenesis: facilitating NADH oxidation via reductive acetate uptake

open access: yesTrends in Biotechnology
(Homo)acetogens, including Clostridium spp., represent an enigma in metabolic flexibility and diversity. Eubacterium callanderi KIST612 is an acetogen that produces n-butyrate with carbon monoxide (CO) as the carbon and energy source; however, the production route is unknown.
Soyoung Oh, Ji-Yeon Kim, Mungyu Lee
exaly   +3 more sources

Methods of Pretreating Raw Materials Containing Organic Compounds before Anaerobic Digestion

open access: yesИнженерные 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

open access: yesFrontiers 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

Understanding the Role of Free-Living Bacteria in the Gut of the Lower Termite Coptotermes gestroi Based on Metagenomic DNA Analysis

open access: yesInsects, 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

Biophysical and Biochemical Characterization of TP0037, a d-Lactate Dehydrogenase, Supports an Acetogenic Energy Conservation Pathway in Treponema pallidum

open access: yesmBio, 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]

open access: yesE3S 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

Syngas as Electron Donor for Sulfate and Thiosulfate Reducing Haloalkaliphilic Microorganisms in a Gas-Lift Bioreactor

open access: yesMicroorganisms, 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

Dichloromethane utilized by an anaerobic mixed culture: acetogenesis and methanogenesis [PDF]

open access: yesBiodegradation, 1991
Dichloromethane (8.9 mg/l) was eliminated from industrially polluted, anaerobic groundwater in a fixed-bed reactor (43 m3) which was packed with activated charcoal and operated continuously for over three years. The elimination of dichloromethane over this period was some ten-fold in excess of the sorptive capacity of the charcoal, and the elimination (
S A, Stromeyer   +4 more
openaire   +4 more sources

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