Figure 2From: Correlation between mass transfer coefficient kLa and relevant operating parameters in cylindrical disposable shaken bioreactors on a bench-to-pilot scalek L a number as a function of the Froude number for 10 L, 20 L and 50 L bioreactors at 25°C, k L a values determined with RAMOS using 1 M Na 2 SO 3 solution with 10-7M CoSO 4 , 0.012 M phosphate buffer, initial pH = 8, power functions with average exponent α = 1.06 fitted to values for relative filling volumes of 25%, 50% and 75% at shaking frequencies of 80–220 rpm with n < N C according to Eq. 2.Back to article page