he growth of baker's yeast (S. cerevisiae) on glucose may be simply described by following equation CH,,06 3 02 0.48 NH,-> 0.
48 C6H,,No, 4.32 H,O 3.12 CO2 yeast In a batch reactor of volume 10 1, the final desired yeast concentration is 50 gdw/1. a. Determine the concentration and total amount of glucose and (NH4),SO4 in the nutrient medium. b. Determine the yield coefficients YxIs (biomass/glucose) and Yro (biomass/oxygen). c. Determine the total amount of oxygen required. d. If the rate of growth at exponential phase is r, 0.7 gdw/l-h, determine the rate of oxygen consumption (g O,/1-h) e. Calculate the heat-removal requirements for the reactor (recall equation 6.26).
2 answers:
Complete Question (in order)
The growth of baker's yeast (S. cerevisiae) on glucose may be simply described by following equation:
C₆H₁₂0₆ + 30₂ + 0.48 NH₃ => 0.48C₆H₁₂NO₃ + 4.32H₂O + 3.12CO₂ yeast
In a batch reactor of volume 10 1, the final desired yeast concentration is 50 gdw/1.
a. Determine the concentration and total amount of glucose and (NH4)₂SO4 in the nutrient medium.
b. Determine the yield coefficients (biomass/glucose) and
(biomass/oxygen).
c. Determine the total amount of oxygen required.
d. If the rate of growth at exponential phase is = 0.7 gdw/l-h, determine the rate of oxygen consumption (g O₂/1-h)
e. Calculate the heat-removal requirements for the reactor (recall equation 6.26).
Answer:
a. 2.3 × 10⁴ kg
b. 0.384 and 0.72
c. 6.94 × 10³ kg
d. 0.973
Explanation:
The given equation that describes the growth of baker's yeast on glucose
C₆H₁₂0₆ + 30₂ + 0.48 NH₃ => 0.48C₆H₁₂NO₃ + 4.32H₂O + 3.12CO₂ yeast
The volume of batch reactor is given as 10⁵ Liters
The final desired yeast concentration is 50 gdw/l
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