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Fermentation Reactors - Medical Science

Q1:

In a glucose-yeast extract medium, Lactococcus lactis has a maximum specific growth rate (um) of 1.23 h-1. What would be the specific growth rate of this organism at steady state in a 4 litre reactor being fed at 2 litres per hour?

A 0.5 h-1

B 1.2 h-1

C 2.4 h-1

D 4 h-1

ANS:A - 0.5 h-1

m = f/v.

= 2/4 = 0.5.