Biochemical Engineering - Fermentation Kinetics

Exercise : Fermentation Kinetics - Section 2
16.
The specific growth rate is affected by
sabstrate concentration
product concentration
oxygen supply
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

17.
The main function(s) of a draft tube in an air lift fermenter is/are to
increase the solubility of oxygen
distribute shear forces throughout the reactor and minimise bubble coalescence
concentrate shear forces around the sparger
concentrate shear forces near the disengagement zone
Answer: Option
Explanation:
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18.
Which of the following is incorrect?
The mechanical agitation and aeration are effective for suspension of cells
The mechanical agitation and aeration are effective for mixing the medium
STF can't be used for high viscosity medium
The mechanical agitation and aeration are effective for oxygenation
Answer: Option
Explanation:
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19.
The contents in bubble column and air lift reactor are mixed through
compressed air
a mechanical internal moving part
external pumping
any of these
Answer: Option
Explanation:
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20.
Which of the following statements would be appropriate while comparing bubble column and air lift fermenter of the same size?
The average bubble size is smaller in an airlift bioreactor
Oxygen transfer rate is higher in an airlift bioreactor
The surface area for gas exchange is higher in an airlift bioreactor
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.