Fig. 6From: Tuning a bi-enzymatic cascade reaction in Escherichia coli to facilitate NADPH regeneration for ε-caprolactone productionFed-batch production of ε-caprolactone through the whole-cell catalysis with resting cells. 40 mM cyclohexanol was added into the reaction system every 16 h. 0.5-mL samples were taken out for the concentration determination of cyclohexanol (black circle), cyclohexanone (black square) and ε-caprolactone (black triangle)Back to article page