TABLE 2.

Final product levels in C. acetobutylicum fermentor experiments at pH 4.5

C. acetobutylicum ATCC 824	Final concn (mM)					Reference
	Butanol	Acetone	Ethanol	Butyrate	Acetate
Wild-type	74	66	15	36	53	42
Harboring pCCL	138	95	21	6	12	42
Harboring pCO1	0	0	3	90	77	This study
Mutant B	240	140	21	22	29	This study