1) The bacterium Azotobacter vinelandii is grown in a 15 m3 agitated fermenter for the production of alginate. Under operational conditions the kLa is 0.17 s-1. The solubility of O2 in the medium is 8.10-3 kg m-3. Ask if: a) Knowing that the specific rate of O2 consumption is 12.5 mmol/g.h, what is the maximum possible cellular concentration?

answer Xmax= 12.14g/L