. 2017 Jan 5;2017:1654237. doi: 10.1155/2017/1654237

Table 1.

Gibbs free energy changes under standard conditions (ΔG ⁰) for anaerobic methane oxidation coupled to different electron acceptors (possibly) performed by ANME.

Reaction	Gibbs free energy (ΔG ⁰, kJ mol⁻¹)
(1) CH₄ + SO₄ ²⁻ → HCO₃ ⁻ + HS⁻+ H₂O	−16.3
(2) CH₄ + 4 NO₃ ⁻ → HCO₃ ⁻ + 4 NO₂ ⁻ + H₂O + H⁺	−517.2
(3) CH₄ + 8 Fe(OH)₃ + 16 H⁺ → CO₂ + 8 Fe²⁺ + 22 H₂O	−571.2
(4) CH₄ + 4 MnO₂ + 8 H⁺ → CO₂ + 4 Mn²⁺ + 6 H₂O	−763.2
(5) CH₄ + 4/3 Cr₂O₇ ²⁻ + 32/3 H⁺ → 8/3 Cr³⁺ + CO₂ + 22/3 H₂O	−841.4