Fig. 5From: Parallel use of shake flask and microtiter plate online measuring devices (RAMOS and BioLector) reduces the number of experiments in laboratory-scale stirred tank bioreactorsOnline and offline data from parallel fermentations of E. coli BL21 EcFbFP under diauxic conditions. Cultivation in WilmsMOPS mineral medium supplemented with 20 g/L glucose and 1.5 g/L sorbitol, buffered with 0.2 M MOPS. Culture conditions for RAMOS: 250 mL RAMOS shake flasks, VL = 12 mL, n = 350 rpm, d0 = 50 mm, T = 30 °C. Culture conditions for RoboLector: 48-well Flowerplate, VL = 0.6 mL, n = 1000 rpm, d0 = 3 mm, T = 30 °C. Lines shown in (b) and (c) for OD600, glucose, sorbitol, acetate and pH represent the averages of the offline data obtained from 250 mL shake flasks and 48-well microtiter plate at the same time points. For better visibility, the sorbitol concentrations were multiplied by a factor of five and the product fluorescence values by a factor of three. The kLa value used for calculation of the OTRcalc course was (a) 276 h−1 Back to article page