Fig. 3
From: Reviving the Weizmann process for commercial n-butanol production
Continuous cultures of C. acetobutylicum CAB1060. a In phosphate-limited chemostat culture at pH 5, b in phosphate-limited high cell density culture at pH 5 with in situ extraction of the alcohols (n-butanol + ethanol) by distillation under low pressure. The arrow indicate the start of the cell bleeding. For both continuous cultures, the initial batch phase is not presented
