Results 31 to 40 of about 17,871 (238)

Isoprene Production from Municipal Wastewater Biosolids by Engineered Archaeon Methanosarcina acetivorans

open access: yesApplied Sciences, 2021
Wastewater biosolids are a promising feedstock for production of value-added renewable chemicals. Methane-producing archaea (methanogens) are already used to produce renewable biogas via the anaerobic treatment of wastewater.
Sean Carr   +2 more
doaj   +1 more source

Fecal Methanogens and Vertebrate Evolution [PDF]

open access: yesEvolution, 1996
It has been assumed that the feeding habits of vertebrates predispose the variety of intestinal differentiations and the composition of the microbial biota living in their intestinal tracts. Consequently, the presence of methanogenic bacteria in the various differentiations of the large intestine and the foregut of herbivorous vertebrates had been ...
Hackstein, J.H.P., Alen, T.A. van
openaire   +3 more sources

Evolving understanding of rumen methanogen ecophysiology

open access: yesFrontiers in Microbiology, 2023
Production of methane by methanogenic archaea, or methanogens, in the rumen of ruminants is a thermodynamic necessity for microbial conversion of feed to volatile fatty acids, which are essential nutrients for the animals. On the other hand, methane is a
Bela Haifa Khairunisa   +7 more
doaj   +1 more source

Molecular characterization of mesophilic and thermophilic sulfate reducing microbial communities in expanded granular sludge bed (EGSB) reactors [PDF]

open access: yes, 2008
The microbial communities established in mesophilic and thermophilic expanded granular sludge bed reactors operated with sulfate as the electron acceptor were analyzed using 16S rRNA targeted molecular methods, including denaturing gradient gel ...
Altinbas, M.   +5 more
core   +2 more sources

Effect of ammonium and acetate on methanogenic pathway and methanogenic community composition [PDF]

open access: yesFEMS Microbiology Ecology, 2012
Methanogenesis from acetate (aceticlastic methanogenesis or syntrophic acetate oxidation (SAO) coupled with hydrogenotrophic methanogenesis) is the most important step for the biogas process. The major environmental factors influencing methanogenesis are volatile fatty acids, ammonia, pH, and temperature. In our study, the effect of acetate and ammonia
Ioannis A, Fotidis   +4 more
openaire   +2 more sources

Novel Methanobacterium Strain Induces Severe Corrosion by Retrieving Electrons from Fe0 under a Freshwater Environment

open access: yesMicroorganisms, 2022
Methanogens capable of accepting electrons from Fe0 cause severe corrosion in anoxic conditions. In previous studies, all iron-corrosive methanogenic isolates were obtained from marine environments.
Shin-ichi Hirano   +7 more
doaj   +1 more source

Technical note: Comparison of biomarker and molecular biological methods for estimating methanogen abundance [PDF]

open access: yes, 2013
Quantitative real-time PCR (qPCR) has become a popular method for estimation of methanogen abundance in the ruminant digestive tract. However, there is no established method in terms of primer choice and quantification, which means that results are ...
Bull, Ian D   +3 more
core   +2 more sources

Evidence for a plasmid in a methanogenic bacterium [PDF]

open access: yesJournal of Bacteriology, 1983
Among 15 strains of methanogens, one plasmid, pMP1, was identified in the new coccoid isolate PL-12/M. It could not be detected in the cleared lysate, but it was detected in the viscous pellet. The plasmid had a molecular weight of ca. 4.6 x 10(6). A restriction enzyme cleavage map of the cloned plasmid was derived.
Thomm, Michael   +2 more
openaire   +3 more sources

Relating Anaerobic Digestion Microbial Community and Process Function [PDF]

open access: yes, 2016
Anaerobic digestion (AD) involves a consortium of microorganisms that convert substrates into biogas containing methane for renewable energy. The technology has suffered from the perception of being periodically unstable due to limited understanding of ...
Bocher, Benjamin T.W.   +3 more
core   +3 more sources

In vitro interactions between Blautia hydrogenotrophica, Desulfovibrio piger and Methanobrevibacter smithii under hydrogenotrophic conditions

open access: yesGut Microbes, 2023
Methanogens, reductive acetogens and sulfate-reducing bacteria play an important role in disposing of hydrogen in gut ecosystems. However, how they interact with each other remains largely unknown. This in vitro study cocultured Blautia hydrogenotrophica
Taojun Wang   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy