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Methanogenesis, acetate

Methane formation from CH3-C0M in acetate methanogenesis follows the same course described for H2-CO2 methanogenesis methyl-coenzyme M reductases have been purified from acetate-grown Methanosarcina and Methanothrix [242,26 i]. [Pg.63]

Methanogenesis from Acetate, Residence Time and Size of Ruminants... [Pg.100]

Fermentation of the wastes - conversion to acetates Acetogenesis - conversion to acids, formaldehyde and Hydrogen, and Methanogenesis - conversion of formaldehyde, acetates, and acids to CO2 and Methane... [Pg.205]

Methanococcus mazeii 2[NiFe] hydrogenases Membrane-bound cytochrome b reducing (Vht) Membrane-bound cytochrome b reducing (Vho) Methanogenesis Methanogenesis H2/CO2, methanol, acetate Constitutive 10... [Pg.53]

The standard free energy change for methanogenesis from hydrogen and CO2 is more exergonic than that of acetogenesis (AG o = -135.6kJ per mole methane and AG o = -104.6kJ per mole acetate, respectively). However, certain conditions compromise or inhibit methanogenesis (Fig. 13.5). In a complex ecosystem, the metabolic interactions of the anaerobic populations... [Pg.179]

Methanogenesis H2 C02 OO2, possibly formate, acetate 4H2+ CO2 CH4 + 2H2O (CO2 reduction) CH3COOH CH4 + CO2 (acetate fermentation) Mesophilic to hyperthermophilic archaea at vents and seeps... [Pg.505]

The reactions catalyzed by B12 may be grouped into two classes those catalyzed by methylcobalamin and those catalyzed by cofactor B,2. The former reactions include formation of methionine from homocysteine, methanogenesis (formation of methylmercury is an important side reaction), and synthesis of acetate from carbon dioxide (82). The latter reactions include the ribonucleotide reductase reaction and a variety of isomerization reactions (82). Since dehydration and deamination have been studied quite extensively and very possibly proceed via [Pg.257]

See other pages where Methanogenesis, acetate is mentioned: [Pg.62]    [Pg.63]    [Pg.63]    [Pg.85]    [Pg.489]    [Pg.62]    [Pg.63]    [Pg.63]    [Pg.85]    [Pg.489]    [Pg.100]    [Pg.341]    [Pg.65]    [Pg.1240]    [Pg.190]    [Pg.191]    [Pg.250]    [Pg.50]    [Pg.113]    [Pg.535]    [Pg.339]    [Pg.610]    [Pg.80]    [Pg.81]    [Pg.38]    [Pg.39]    [Pg.51]    [Pg.201]    [Pg.181]    [Pg.181]    [Pg.182]    [Pg.182]    [Pg.185]    [Pg.120]    [Pg.139]    [Pg.139]    [Pg.143]    [Pg.144]    [Pg.77]    [Pg.194]    [Pg.189]    [Pg.271]    [Pg.275]    [Pg.155]    [Pg.407]   
See also in sourсe #XX -- [ Pg.319 ]



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Acetate formation from pyruvate in the absence of methanogenesis

Acetate methanogenesis from

Methanogenesis

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