Biochemical Engineering | Enzymes And Application

Which of the following mainly serve to convert starch into high fructose corn syrup (HFCS)?

Byadmin July 20, 2022

Question: Which of the following mainly serve to convert starch into high fructose corn syrup (HFCS)?
[A].

α-amylase

[B].

Gluco-isomerase

[C].

Gluco-amylase

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.

Agitation And Aeration | Biochemical Engineering

At 25°C, the saturation concentration of oxygen in water is 1.26 mmol/l and the partial pressure of oxygen is 1 atm. The Henry’s law constant will be

Question: At 25°C, the saturation concentration of oxygen in water is 1.26 mmol/l and the partial pressure of oxygen is 1 atm. The Henry’s law constant will be
[A].

0.793atml/mmol
[B].
0.207atml/mmol
[C].
1.26 atml/mmol
[D].
8.74 atml/mmol

Answer: Option A

Explanation:

No answer description available for this question.

Read More At 25°C, the saturation concentration of oxygen in water is 1.26 mmol/l and the partial pressure of oxygen is 1 atm. The Henry’s law constant will be
Biochemical Engineering | Immobilized Enzyme

If Damkohler number, NDa >>1, the reaction rate is much greater than the mass transfer rate and the overall reaction is controlled by the rate of mass transfer. In this case, the enzyme reaction can be described as (where Csb and Cs are the substrate concentration in bulk of solution and at the immobilized enzyme surface respectively. ks mass transfer coefficient, and a is the surface area of an immobilized enzyme particles)

Question: If Damkohler number, NDa >>1, the reaction rate is much greater than the mass transfer rate and the overall reaction is controlled by the rate of mass transfer. In this case, the enzyme reaction can be described as (where Csb and Cs are the substrate concentration in bulk of solution and at the immobilized enzyme surface respectively. ks mass transfer coefficient, and a is the surface area of an immobilized enzyme particles)
[A].

rp = ksa(Csb-Cs)
[B].
rp = ksaCsb
[C].
rp = ksaCs
[D].
rp = ksa(Csb+Cs)

Answer: Option B

Explanation:

No answer description available for this question.

Read More If Damkohler number, NDa >>1, the reaction rate is much greater than the mass transfer rate and the overall reaction is controlled by the rate of mass transfer. In this case, the enzyme reaction can be described as (where Csb and Cs are the substrate concentration in bulk of solution and at the immobilized enzyme surface respectively. ks mass transfer coefficient, and a is the surface area of an immobilized enzyme particles)
Agitation And Aeration | Biochemical Engineering

The power required by an agitator operating in a gas-sparged system is

Question: The power required by an agitator operating in a gas-sparged system is
[A].

lesser than the power required by an impeller in operating at same speed in a gas free system
[B].
more than the power required by an impeller in operating at same speed in a gas free system
[C].
same as the power required by an impeller in operating at same speed in a gas free system
[D].
none of the above

Answer: Option A

Explanation:

No answer description available for this question.

Read More The power required by an agitator operating in a gas-sparged system is
Biochemical Engineering | Immobilized Enzyme

Damkohler number(NDa) is

Question: Damkohler number(NDa) is
[A].

the ratio of the maximum reaction rate to the maximum mass transfer rate
[B].
the ratio of the minimum reaction rate to the maximum mass transfer rate
[C].
the ratio of the maximum reaction rate to the minimum mass transfer rate
[D].
the ratio of the minimum reaction rate to the minimum mass transfer rate

Answer: Option A

Explanation:

No answer description available for this question.

Read More Damkohler number(NDa) is
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
Agitation And Aeration | Biochemical Engineering

Which of the following is not classified as an axial flow impeller?

Question: Which of the following is not classified as an axial flow impeller?
[A].

A propeller
[B].
A marine impeller
[C].
A Rushton turbine
[D].
A hydrofoil impeller

Answer: Option C

Explanation:

No answer description available for this question.

Read More Which of the following is not classified as an axial flow impeller?

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