Question

Which bioreactor type is most commonly used for large-scale recombinant protein production?

• A. Packed bed reactor
• B. Stirred-tank bioreactor
• C. Airlift reactor
• D. Trickling filter

Hint:

Advantages of a stirred-tank bioreactor: \[ \boxed{ \begin{aligned} &\text{Efficient mixing} &\text{Good aeration} &\text{Uniform nutrient distribution} &\text{Easy control of pH and temperature} \end{aligned} } \]

Answer 1

The Correct Option is B

Step 1: Recall the commonly used industrial bioreactors. Among industrial fermenters, the stirred-tank bioreactor is the most widely used because it provides efficient mixing, aeration and temperature control.

Step 2: Identify the appropriate bioreactor. For large-scale production of recombinant proteins, \[ \boxed{\text{Stirred-tank bioreactor}} \] is preferred due to its excellent oxygen transfer and ease of process control. Therefore, \[ \boxed{(B)} \] is the correct answer.