Biomass is being produced in a continuous stirred tank bioreactor of 750 L capacity. The sterile feed containing 8 g.L 1 glucose as substrate was fed at a flow rate of 150 L.h 1. The microbial system follows Monod's model with m = 0.4 h 1, Ks = 1.5 g.L 1 and Yx/s = 0.5 g cell mass-g substrate 1. Determine the cell productivity (g.L 1.h 1) at steady state.

Biomass is being produced in a continuous stirred tank bioreactor of 7

1.	Biomass is being produced in a continuous stirred tank bioreactor of 750 L capacity. The sterile feed containing 8 g.L 1 glucose as substrate was fed at a flow rate of 150 L.h 1. The microbial system follows Monod's model with m = 0.4 h 1, Ks = 1.5 g.L 1 and Yx/s = 0.5 g cell mass-g substrate 1. Determine the cell productivity (g.L 1.h 1) at steady state.
A.	0.85
B.	0.65
C.	0.45
D.	0.25
Answer» C. 0.45

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