Fig. 6
From: Evaluation of microbial globin promoters for oxygen-limited processes using Escherichia coli
Induction ratio of the globin promoters characterized. The induction ratio was calculated dividing the value of the specific fluorescence intensity during the aerobic phase by the corresponding value during the oxygen-limited phase. White bars correspond to cultures at OTRmax ca. 7 mmol L−1 h−1 and black bars to cultures at OTRmax ca. 11 mmol L−1 h−1. Values are average of three cultures. Vertical lines indicate the standard deviation (n = 3) of average values