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Select the option that contains an incorrect statement regarding bioreactors.

 

 

Option: 1

Bioreactors, also referred to as fermenters. They facilitate the controlled growth of microbes in a regulated environment.


Option: 2

They are capable of handling substantial volumes of culture typically ranging from 100 to 1000 liters.


Option: 3

The addition of anti-foaming agents is necessary to mitigate excessive foaming induced by proteins present in the culture medium.


Option: 4

Bubbles significantly enhance the oxygen transfer area within the bioreactor system.


Answers (1)

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  • Foaming can occur in bioreactors due to the presence of proteins, surfactants, or other factors that create bubbles or foam in the culture. The foaming can hinder the proper mixing and gaseous exchange in the bioreactor leading to the reduced efficiency. Anti-foaming agents are added to bioreactors to minimize or suppress the formation of foam, allowing for better control of the culture conditions and preventing potential issues caused by excessive foam.
  • However, the correct statement should be that anti-foaming agents are used to decrease or prevent foaming caused by proteins in the culture medium.
  • Therefore, the correct answer is option 3.
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Rishi

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