Microbial production of methane from organic material is an essential process in the global carbon cycle and an important source of renewable energy. This natural process is based on a cooperative interaction between different types of microorganisms: the fermenting bacteria and the methane-producing archaea. The former converts so-called primary fermentation products from biomass decomposition, including fatty acids into intermediate products such as acetic acid, formate or H2.
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Source: Phys.org