Fig. 2
From: Metabolic engineering of Escherichia coli for production of n-butanol from crude glycerol
Microaerobic production of n-butanol in strains with the amplification of the fueling pathways. The E. coli strains were grown in M9Y medium containing 20 g/L pure glycerol and the fermentations were carried out for 24 h. The experiments were conducted in triplicate. Keys a the fermentation of strain BuT-8; b the fermentation of strain BuT-12A