Fig. 2
From: Butanol production from lignocellulosic sugars by Clostridium beijerinckii in microbioreactors
pH versus time plots of fermentations done in BioLector® using 5 and 10 g/l total sugar and varied glucose (G)-to-xylose (X) ratios. a 5-G100:X0, b 5-G80:X20, c 5-G60:X40, d 5-G40:X60, e 5-G20:X80, f 5-G0:X100, and g 10-G100:X0, h 10-G80:X20, i 10-G60:X40, j 10-G40:X60, k 10-G20:X80, and l 10-G0:X100. Mean values of the 4 replicas are shown together with error bars representing standard deviation