Question:
Which parameter most directly controls Oxygen Transfer Rate (OTR) in aerobic fermenters?
Which parameter most directly controls Oxygen Transfer Rate (OTR) in aerobic fermenters?
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The Oxygen Transfer Rate is commonly expressed as
\[
\boxed{
OTR=k_La(C^*-C_L)
}
\]
where agitation and aeration mainly increase the value of \(k_La\).
Updated On: Jul 23, 2026
- Medium pH
- Agitation and aeration rate
- Inoculum size
- Temperature
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
The Oxygen Transfer Rate (OTR) depends mainly on oxygen supply and mixing within the fermenter.
Increasing agitation improves mixing, while increasing aeration supplies more oxygen.
Thus, both factors directly increase oxygen transfer.
Hence,
\[
\boxed{\text{Agitation and aeration rate}}
\]
is the correct answer.
Therefore,
\[
\boxed{(B)}
\]
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