The growth of baker's yeast (S. cerevisiae) on glucose is described as follows: C6H12O6 + 3O2 + 0.48NH3 -> 0.48C6H10NO3 + 4.32H2O + 3.12CO2. In a batch reactor volume of 105 L, the final desired yeast concentration is 50 g/L. Using the above reaction stoichiometry:
a. Calculate the concentration and total amount of glucose and (NH4)2SO4 in the nutrient media. (6)
b. Determine the yield coefficient Yx/s (biomass/glucose) and Yx/O2 (biomass/oxygen). (2)
c. Determine the total amount of oxygen required. (2)