Results 51 to 60 of about 1,079 (172)
Frontiers in Bioengineering and Biotechnology, 2020 The sustainable production of chemicals from non-petrochemical sources is one of the greatest challenges of our time. CO2 release from industrial activity is not environmentally friendly yet provides an inexpensive feedstock for chemical production.
Jonathan Lo +8 more
doaj +1 more source
Frontiers in Microbiology, 2020 Both CO and H2 can be utilized as energy sources during the autotrophic growth of Clostridium ljungdahlii. In principle, CO is a more energetically and thermodynamically favorable energy source for gas fermentation in comparison to H2.
Hai-Feng Zhu +7 more
doaj +1 more source
A Metagenome‐Assembled Genome Catalog From the Global Ruminant Microbiomes
Animal Research and One Health, EarlyView.The Ruminant Gastrointestinal MAG Catalog (RGMC) is a comprehensive global resource offering 40,812 strain‐level genomes across 53 bacterial and 4 archaeal classes. It greatly surpasses prior efforts in scale and diversity, serving as an essential foundation for research in ruminant nutrition, microbial function, and methane mitigation.
Shizhe Zhang +8 more
wiley +1 more source
A Third Way of Energy Conservation in Acetogenic Bacteria
Microbiology Spectrum, 2022 Acetogenic bacteria grow by making acetate from CO 2 and are considered the first life forms on Earth since they couple CO 2 reduction to the conservation of energy. How this is achieved has been an enigma ever since.
Kremp, Florian +2 more
openaire +3 more sources
Frontiers in Microbiology, 2022 One-carbon (C1) compounds are promising feedstocks for the sustainable production of commodity chemicals. CO2 is a particularly advantageous C1-feedstock since it is an unwanted industrial off-gas that can be converted into valuable products while ...
Sara Benito-Vaquerizo +9 more
doaj +1 more source
CleanMat, EarlyView.Efficient conversion of organic waste to biogas depends on the coordinated optimization of feedstock composition, pretreatment, operational parameters, reactor design, and microbial community dynamics. This review highlights how these interacting factors improve methane yield and process stability, advancing anaerobic digestion as a practical pathway ...
Ahmed Alengebawy +6 more
wiley +1 more source
Interconnection of methanogenic and acetogenic pathways [PDF]
FEMS Microbiology Letters, 1983 Methanopterin displays a folate-like biochemistry: methenyl-, methylene- and methyltetrahydromethanopterin are intermediates in the process of methanogenesis. A corrinoid-enzyme is involved in methanol conversion and the possible function of such enzymes in cell-carbon synthesis and acetate conversion is discussed.
Godfried D. Vogels, Cornelis M. Visser
openaire +2 more sources
Prebiotic aqueous reactions catalyzed by native nickel without hydrogen
The FEBS Journal, EarlyView.Serpentinizing (H2‐producing) hydrothermal vents are candidate environments for metabolic origin. They generate highly reducing conditions that convert CO2 to formate and methane in abiotic reactions resembling reactions of the acetyl‐CoA pathway of CO2 fixation. They also contain natural catalysts. Native nickel (Ni0), like Fe0, Co0, and their alloys,
Carolina Garcia Garcia +2 more
wiley +1 more source
Green Carbon, 2023 The negative effect of fossil-based industrial processes on the environment, especially the contribution to global warming by emitting greenhouse gases such as CO2 causes a global threat to mankind. Therefore, technologies are demanded by the society for
Florian P. Rosenbaum, Volker Müller
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The Role of Oxidative Stress in Periodontitis
Journal of Periodontal Research, EarlyView.Oxidative stress is involved in multiple chemical reactions that take place in different intracellular organelles: mitochondria, rough endoplasmic reticulum, peroxisomes, autophagy, and aging, and can be influenced by exogenous factors: nutrition, physical activity, psychological status, environmental conditions, microbiome, and drugs.
Pedro Bullon +3 more
wiley +1 more source