Direction: A bioreactor of working volume 50 m3 produces a metabolite (X) in batch culture under given operating conditions from a substrate (S). The final concentration of metabolite (X) at the end of each run was 1.1 kg m–3. The bioreactor was operated to complete 70 runs in each year.
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What will be the overall productivity of the system in kg year–1 m–3 ?
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- 19250
- 38.50
- 3850
- 77
Correct Option: D
Overall productivity =Total number of runs × final concentration at each end
= 70 runs × 1.1 kg m–3 = 77 kg m–3 year–1
