Question 14 :
Which of the following is not the
component of aeration and agitation
system?
o Impeller
Ba
Answers
beryi was the component of aeration
Correct question:
Which of the following is not the component of aeration and agitation system?
a) Impeller
b)baffles
c)stirrer gland and bearing
d)Thermometer
Answer:
The correct answer is d) thermometer.
Explanation:
Impeller, baffles , stirrer gland and bearing are the structural part of the fermenters which are involved in the aeration and agitation.
Aeration is the process of increasing oxygen concentration in a liquid.
Agitation means the uniform suspension of microbial cells in homogenous nutrients medium.
Impeller mixes, aerates and mass transfers within the vessel.
Baffles promote better flow of liquids.
Stirrer gland and bearing they seal the openings of the bioreactors and doesn't allow outside air to come in.
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