Table 1.

Predicted ΔG for acetate conversion to propionate and butyrate and for reductive acetogenesis for batch and continues cultures at 0 and 100% methanogenesis inhibition.

Process	System	Methanogenesis inhibition (%)	ΔG (kJ / mol VFA)	95% confidence interval
Acetate to propionate	Batch	0	−3.42	−10.3 to 3.42
		100	−29.2	−42.7 to −15.7
	Continuous	0	3.57	−5.15 to 12.3
		100	−25.3	−41.8 to −8.79
Acetate to butyrate	Batch	0	−6.50	−12.8 to −0.16
		100	−23.1	−34.5 to −11.7
	Continuous	0	−1.93	−7.99 to 4.27
		100	−20.2	−31.8 to −8.59
Reductive acetogenesis	Batch	0	−18.2	−23.0 to −13.4
		100	−51.2	−63.5 to −38.9
	Continuous	0	−8.67	−20.8 to 3.48
		100	−50.2	−73.1 to −27.3