A 200-1itre stirred fermenter contains a batch culture of Bacillus subtilis bacteria at 28⁰C Air at 20⁰C is pumped into the vessel at a rate of 1 vvm; (vvm stands for volume of gas per volume of liquid per minute). The average pressure in the fermenter is 1 atm. The volumetric flow rate of off-gas from the fermenter is measured as 189 l min^-1. The exit gas stream is analysed for oxygen and is found to contain 20.1% 0₂. The dissolved-oxygen concentration in the broth is measured using an oxygen electrode as 52% air saturation. The solubility of oxygen in the fermentation broth at 28⁰C and 1 atm air pressure is 7.8 x 10^-3 kg m^-3. Determine the value of k_La for the system ____________

TLS Online TPP Program

#Question id: 20601

#Section 5: Bioprocess Engineering and Process Biotechnology

The difference between the set points and the measured signal is known as ______________?

TLS Online TPP Program

#Question id: 20602

#Section 5: Bioprocess Engineering and Process Biotechnology

The function of the proportional integral derivative mode is to ____________ ?

TLS Online TPP Program

#Question id: 20603

#Section 5: Bioprocess Engineering and Process Biotechnology

In proportional integral controller ________________ parameters will decrease?

TLS Online TPP Program

#Question id: 20849

#Section 4: Fundamentals of Biological Engineering

Phase at which cells can multiply rapidly, and cell mass and cell number density increase exponentially with time

TLS Online TPP Program

#Question id: 20850

#Section 4: Fundamentals of Biological Engineering

Match the group 1 with appropriate description of group 2.

Group 1                                                  group 2

(P) Copper                                        (1) cell wall of plant cells

(Q) Cobalt                                         (2) nitrate reductase

(R) Molybdenum                              (3) respiratory-chain components

(S) Calcium                                        (4) vitamin B12

TLS Online TPP Program

#Question id: 21005

#Section 4: Fundamentals of Biological Engineering

Which of the following graph represent substrate inhibition?