Oxygen Uptake Rate in the Broth

If it is desired to relate fermenter performance to oxygen uptake rate in the broth, this number can be specified along with suitable desired gas rates, and the mixer estimated, based on this performance. Again, someone must have the link between this particular mass transfer specification and the actual performance of the fermenter. 

If this number is based on pilot plant data, then the effect of the different shear rates and different blend times on the mass transfer relationship, viscosity and the resulting fermentation must be considered. 

---