24 (Giovannini , 2016) Bioenergetic (Endergonic reaction G0 2 G0 (Schink, 1997) 2C2H5OH 2H2O 2CH3COOH 4H2 G0 +19 2 CO2 4H2 CH4 2H2O G0 -135 6 2C2H5OH CO2 2CH3COOH CH4 G0 -116 4 (1.40) (1. (1.42) G0 (Schink, 1997) (Jetten , 1992) (Schink, 1997)