Fig. 6From: Three steps in one pot: biosynthesis of 4-hydroxycinnamyl alcohols using immobilized whole cells of two genetically engineered Escherichia coli strainsEffects of the initial pH value on biotransformation capacity. The immobilized whole cells were cultivated in LB medium with 1 mM ferulic acid at 30 °C for 10 h. The LB medium was adjusted to pH 5, 6, 7, 8 and 9, respectively. Error bars indicate mean values ± SD from three independent experimentsBack to article page