Table 1.

Reactions that form the metabolic pathways of acidogenesis and solventogenesis and the enzymes which are required to catalyze the solvent-associated reactions, i.e. 3-7 and 9.

Reaction number	Reaction	Associated enzyme(s)
1	glucose → acetyl-CoA
2	acetyl-CoA → acetate
3	acetate + acetoacetyl-CoA → acetoacetate + acetyl-CoA	CtfA/B
4	acetyl-CoA → acetoacetyl-CoA	ThlA
5	acetyl-CoA → ethanol	AdhE
6	butyrate + acetoacetyl-CoA → acetoacetate + butyryl-CoA	CtfA/B
7	acetoacetate → acetone	Adc
8	butyryl-CoA → butyrate
9	butyryl-CoA → butanol	AdhE, BdhA/B
10	acetoacetyl-CoA → butyryl-CoA