Fig. 4.

Fermentation profiles of E. coli strain LW393 in rich medium with glucose or xylose. Fermentations were in LB medium with trace elements and either glucose (a) or xylose (b) as the fermentable sugar. Culture temperature was 37 °C and the pH was maintained at 7.0. N₂ was sparged through the culture to maintain anaerobic condition. Results are average of three independent experiments with standard deviation