Figure 4From: Modulation of endogenous pathways enhances bioethanol yield and productivity in Escherichia coliFermentation profiles of E. coli B (A and B) and SSY09(pZSack) (C and D) grown in the bioreactor in defined medium with glucose (A and C) and xylose (B and D) as carbon source. Competing products of ethanol are produced at significant level during fermentation of both glucose and xylose in E. coli B while SSY09(pZSack) primarily produced ethanol. SSY09(pZSack) - PgapAPDH ΔldhA ΔfrdA Δack ΔpflB (pZSack).Back to article page