Biochemical Engineering | Fermentation Kinetics

The main function(s) of a draft tube in an air lift fermenter is/are to

Byadmin July 20, 2022

Question: The main function(s) of a draft tube in an air lift fermenter is/are to
[A].

increase the solubility of oxygen

[B].

distribute shear forces throughout the reactor and minimise bubble coalescence

[C].

concentrate shear forces around the sparger

[D].

concentrate shear forces near the disengagement zone

Answer: Option B

Explanation:

No answer description available for this question.

Agitation And Aeration | Biochemical Engineering

Surface renewal theory predicts that the mass transfer coefficient is

Question: Surface renewal theory predicts that the mass transfer coefficient is
[A].

directly proportional to the square root of the molecular diffusivity
[B].
inversely proportional to the square root of the molecular diffusivity
[C].
directly proportional to the cube root of the molecular diffusivity
[D].
indirectly proportional to the cube root of the molecular diffusivity

Answer: Option A

Explanation:

No answer description available for this question.

Read More Surface renewal theory predicts that the mass transfer coefficient is
Biochemical Engineering | Enzymes And Kinetics

Michaelis Menten equation can also be written as

Question: Michaelis Menten equation can also be written as
[A].

(-Cs)/r = (Cs/rmax)+(Km/rmax)
[B].
1/r = (1/rmax)+(Km/(rmax.Cs))
[C].
r = rmax-(Km.r/Cs)
[D].
All of these

Answer: Option D

Explanation:

No answer description available for this question.

Read More Michaelis Menten equation can also be written as
Biochemical Engineering | Fermentation Reactors

Mixing per unit volume is observed to be poorest in

Question: Mixing per unit volume is observed to be poorest in
[A].

continuous packed bed reactor
[B].
continuous fluidized bed bioreactor
[C].
continuous airlift bioreactor
[D].
none of the above

Answer: Option A

Explanation:

No answer description available for this question.

Read More Mixing per unit volume is observed to be poorest in
Biochemical Engineering | Enzymes And Application

Juice clarification extraction is facilitated by using

Question: Juice clarification extraction is facilitated by using
[A].

cellulases
[B].
amylase
[C].
inulinase
[D].
lactase

Answer: Option A

Explanation:

No answer description available for this question.

Read More Juice clarification extraction is facilitated by using
Agitation And Aeration | Biochemical Engineering

The dynamic technique is based on the

Question: The dynamic technique is based on the
[A].

oxygen material balance in an aerated batch fermenter during the growth of microorganisms
[B].
change of the oxygen concentration
[C].
oxidation of the sodium sulfite to sodium sulfate
[D].
oxygen material balance in a fermenter

Answer: Option A

Explanation:

No answer description available for this question.

Read More The dynamic technique is based on the
Biochemical Engineering | Fermentation Kinetics

The dilution rate, D is defined as(where F = volumetric flow rate, VR = total volume of culture in the reactor and μ specific growth rate)

Question: The dilution rate, D is defined as(where F = volumetric flow rate, VR = total volume of culture in the reactor and μ specific growth rate)
[A].

F/VR
[B].
VR/F
[C].
μ/F
[D].
F/μ

Answer: Option A

Explanation:

No answer description available for this question.

Read More The dilution rate, D is defined as(where F = volumetric flow rate, VR = total volume of culture in the reactor and μ specific growth rate)

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