Figure 2From: Introducing a single secondary alcohol dehydrogenase into butanol-tolerant Clostridium acetobutylicum Rh8 switches ABE fermentation to high level IBE fermentationFermentation profiles of (a) C. acetobutylicum Rh8(pIMP1) and (b) C. acetobutylicum Rh8(psADH). The fermentation was performed in CGM culture under pH 5.0 with 100 μg/ml erythromycin at 37°C in 7.5 L fermentor with an initial working volume of 3 L. Data shown represent the averages of two independent fermentations.Back to article page