What are methanogenesis?

Methanogenesis

Methanogenesis or biomethanation is the formation of methane by microbes known as methanogens. Organisms capable of producing methane have been identified only from the domain Archaea, a group phylogenetically distinct from both eukaryotes and bacteria, although many live in close association with anaerobic bacteria. The production of methane is an important and widespread form of microbial metabolism. In most environments, it is the final step in the decomposition of biomass.

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Some articles on methanogenesis:

Syntrophy
... Finally, anaerobic fermentation/methanogenesis is an example of a syntrophic relationship between different groups of microorganism ... archea are the two groups of microorganisms living in syntrophy during the methanogenesis ... aromatic fatty acids, cannot directly be used in methanogenesis ...
Tailings - Pond Reclamation By Microbiology
... By analyzing the Achaeans, Bacteria and the gas released from tailings ponds, those are methanogenesis ... Siddique (2006, 2007) states that methanogenesis in the tailings pond live and reproduce by anaerobic degradation which will lower the molecular weight from naphtha to aliphatic, aromatic ... In other words, those methanogenesis improve the coefficient of utilization ...
Anaerobic Digestion - Process - Process Stages
... chemical stages of anaerobic digestion Hydrolysis Acidogenesis Acetogenesis Methanogenesis In most cases, biomass is made up of large organic polymers ... The terminal stage of anaerobic digestion is the biological process of methanogenesis ... Methanogenesis is sensitive to both high and low pHs and occurs between pH 6.5 and pH 8 ...