Dimethyl sulfate is used to ___

TLS Online TPP Program

#Question id: 21973

#Unit 12. Biochemical Engineering

Continuous stirred tank fermenter is characterized by (biomass concentration X kg/m3, residual substrate is S kg/m3, Sf=substrate concentration in feed kg/m3, Dilution rate = D and μm>>D and Km<Sf, XD= the biomass productivity kg/m3h. If the dilution rate is doubled to 2D then the new steady state values in comparison with earlier steady state is characterized by

TLS Online TPP Program

#Question id: 21979

#Unit 12. Biochemical Engineering

Exponentially growing cells increase 10 fold in 10 hours, the time required to increase 5 fold will be ………hours

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#Question id: 21502

#Unit 12. Biochemical Engineering

Chemostat cultivation is carried out at steady state with a dilution rate of 0.1 h^-1 . Given μm = 1.1 h^-1and Ks=0.1 g/L. What will be steady state substrate concentration?

TLS Online TPP Program

#Question id: 21046

#Unit 12. Biochemical Engineering

An organism obeys Andrews model for growth inhibition with Ks and Ki values of 0.01 g/l and 1.0 g/l respectively. If the substrate is present at an initial concentration of 1.0g/l, the specific growth rate of the culture upon entering log phase would be approximately:

TLS Online TPP Program

#Question id: 21052

#Unit 12. Biochemical Engineering

For a cell growth process, the units for yield, productivity and titre are:

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#Question id: 21054

#Unit 12. Biochemical Engineering

Zymomonas mobilis is cultivated in a 60 l chemostat. The μmax and Ks values are 0.2 h^-1 and 0.5 g l^-1 respectively. The flow rate (l h^-1) required for a steady state substrate concentration of 0.5 g l-1 in the reactor is: