The metabolism of lactose byClostridium acetobutylicum

Summary Acetone and butanol biosynthesis byClostridium acetobutylicum ATCC 824 was affected by lactose concentration and by agitation during the fermentation. At 1% and 3% lactose concentrations acid production predominated, while butanol production predominated at 5% lactose concentration. Higher solvent production was observed in fermentors without agitation than in fermentors with agitation.