Question

The value of CR,opt for product limiting microbial fermentation (in kg/m^3), given the value of  CR*=60 kg/m^3 is ____

(a) 30

(b) 20

(c) 15

(d) 10

This question was addressed to me in unit test.

Enquiry is from Microbial Fermentation in section Bioreactors, Enzyme and Microbial Fermentation of Chemical Reaction Engineering

Answer 1

Right choice is (a) 30

The explanation: CR,opt = \(\frac{C_R*}{2} = \frac{60}{2}\) = 30 kg/m^3.