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Bioprocess Engineering 2nd Edition by Fikret Kargi,Michael Shuler
Edition 2ISBN: 9780130819086Bioprocess Engineering 2nd Edition by Fikret Kargi,Michael Shuler
Edition 2ISBN: 9780130819086 Exercise 7
A value of 
has been determined for a fermenter at its maximum practical agitator
rotational speed and with air being sparged at 0.5 l gas/l reactor volume-min. E. coli with a
of 10 mmol O₂/g-dry wt-h are to be cultured. The critical dissolved oxygen concentration
is 0.2 mg/l. The solubility of oxygen from air in the fermentation broth is 7.3 mg/l at 30∞C.
a. What maximum concentration of E. coli can be sustained in this fermenter under aerobic
conditions?
b. What concentration could be maintained if pure oxygen was used to sparge the reactor?
has been determined for a fermenter at its maximum practical agitatorrotational speed and with air being sparged at 0.5 l gas/l reactor volume-min. E. coli with a
of 10 mmol O₂/g-dry wt-h are to be cultured. The critical dissolved oxygen concentrationis 0.2 mg/l. The solubility of oxygen from air in the fermentation broth is 7.3 mg/l at 30∞C.
a. What maximum concentration of E. coli can be sustained in this fermenter under aerobic
conditions?
b. What concentration could be maintained if pure oxygen was used to sparge the reactor?
Explanation
Verified
Verified
The value 
stands for volumetric transfe...
Bioprocess Engineering 2nd Edition by Fikret Kargi,Michael Shuler
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