Fig. 3
Glucose concentration and uptake over time. a Residual glucose concentration in mM (black dots) and the PWA fitted profile (blue line) over one cycle time (s). b Glucose uptake rate (− qglc) in μmolesglc/gCDW/s over one cycle time (s). The red dots represent the breakpoints. Note that for the rate only the first 110 s are shown. For t > 110 s, the flux was zero until the end of the cycle. Green vertical dashed lines show the end of the feeding (20 s) and the horizontal dotted lines represent the average steady-state levels