Fig. 3From: Ferulic acid production by metabolically engineered Escherichia coliEffect of combinations of plasmid replicons (pBR322, p15a) and promoter strength (T7 promoter, T5 promoter) on FA production in host cell JM109(DE3). The fermentation was carried out in M9Y medium supplemented with 2% (v/v) glycerol and 1 g/L L-tyrosine at 28 °C and 250 rpm for 5 daysBack to article page