Homework+4 - gram basis. c) Determine the total amount of...

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Homework 4: Due October 6 th Chemical Engineering 170A: Biochemical Engineering Question 1. Stoichiometry Blanch and Clark Ch. 3 Problem 1. Question 2. Baker’s Yeast The growth of Baker’s yeast ( S. cerevisiae ) on glucose may be described by the following chemical reaction: C 6 H 12 O 6 + 3O 2 + 0.48NH 3 0.48C 6 H 10 NO 3 + 4.32H 2 O +3.12CO 2 In a batch reactor of volume 10 5 L, the final desired yeast concentration is 50gdw/L. Using the above reaction stoichiometry (Note: gdw stands for gram dry weight): a) Determine the concentration and total amount of glucose and (NH 4 ) 2 SO 4 in the nutrient medium (assume (NH 4 ) 2 SO 4 is the sole source of nitrogen). b) Determine the yield coefficients Y X/S (biomass/glucose) and Y X/O (biomass/oxygen) on a
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Unformatted text preview: gram basis. c) Determine the total amount of oxygen required. d) If the growth rate at exponential phase is r X = 0.7 gdw/lh, determine the rate of oxygen consumption (gm O 2 /lh). e) Calculate the heat removal requirement for the reactor. Question 3. ATP Requirements for Growth Blanch and Clark Ch. 3 Problem 6. NOTE: The cell composition information is missing from the problem statement. Use the following data given in weight percent. DNA 3.2% RNA 21.3% Protein 57.2% Lipid 9.5% Polysaccharides 8.8% Question 4. Effective Diffusivity of Xylose in Particles of Immobilized Glucose Isomerase Blanch and Clark Ch. 2 Problem 11...
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Homework+4 - gram basis. c) Determine the total amount of...

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