#Question id: 383
#Section 4: Fundamentals of Biological Engineering
Three buffers are made by combining a 1 M solution of acetic acid with a 1 M solution of sodium acetate in the ratios shown below
|
1 M acetic acid |
1 M sodium acetate |
|
Buffer 1: 10 mL |
90 mL |
|
Buffer 2: 50 mL |
50 mL |
|
Buffer 3: 90 mL |
10 mL |
Which of these statements is true of the resulting buffers?
#Question id: 19927
#Section 5: Bioprocess Engineering and Process Biotechnology
#Question id: 14847
#Section 1: Engineering Mathematics
#Question id: 14237
#Section 5: Bioprocess Engineering and Process Biotechnology
A genetically-engineered strain of yeast is cultured in a bioreactor at 30⁰C for production of heterologous protein. The oxygen requirement is 80 mmol 1-1 h-I; the critical oxygen concentration is 0.004 mM. The solubility of oxygen in the fermentation broth is estimated to be 10% lower than in water due to solute effects. What is the minimum mass-transfer coefficient necessary to sustain this culture if the reactor is sparged with air at approximately 1 atm pressure ?
#Question id: 14182
#Section 5: Bioprocess Engineering and Process Biotechnology
Aerobic degradation of benzoic acid by a mixed culture of microorganisms can be represented by the following reaction.
Determine
the yield coefficients YX/O2