Fig. 8From: Highly efficient fermentation of 5-keto-d-fructose with Gluconobacter oxydans at different scalesComparison of productivities, oxygen transfer rates and fructose concentrations for extended batch fermentations of G. oxydans 621H ΔhsdR pBBR1p264-fdhSCL-ST of this work, using different fermenters and fructose feed concentrations. Depicted are A productivities B oxygen transfer rates, C the fructose concentrations and D main information for cultivations displayed in Fig. 1 (black), Fig. 4 (blue), Fig. 6 (light blue), Fig. 7 (green), Additional file 1: Fig. S2 (orange) and Additional file 1: Fig. S5 (pink). For better visualisation of OTR curves during final batch phases, y-axis of B is only shown for OTR values between 0 and 30 mmol/L/hBack to article page