Question

What does tii represents in the equation of the productivity of a batch culture?

(a) The organism is growing at μmax

(b) Includes acceleration phase

(c) The organism is not growing at μmax

(d) Includes the stationary phase

The question was asked during a job interview.

I'm obligated to ask this question of Comparison of Batch and Continuous Culture in Industrial Processes in portion Microbial Growth Kinetics of Bioprocess Engineering

Answer 1

Correct choice is (c) The organism is not growing at μmax

The explanation is: The tii is the time during which the organism is not growing at μmax and includes the lag phase, the deceleration phase and the periods of batching, sterilizing and harvesting.