Agitation and Aeration – Section 3 1. The effect of increasing the stirrer speed in an unbaffled stirred tank reactor is that A. a…
Agitation and Aeration – Section 2 1. When the height of an aerated bioreactor is increased, it will increase the oxygen transfer rate by…
Agitation and Aeration – Section 1 1. Swirling and vortex formation can be prevented by A. using baffles B. using diffusion ring with turbines…
Fermentation Reactors – Section 2 1. In a glucose-yeast extract medium, Lactococcus lactis has a maximum specific growth rate (um) of 1.23 h-1…
Fermentation Reactors – Section 1 1. Yield coefficient represents A. total biomass or product produced B. conversion efficiency of a substrate into product…
Immobilized Enzyme – Section 1 1. Water-insoluble enzymes can be prepared by using multifunctional agents that are bifunctional in nature and have A.…
Downstream Processing – Section 1 1. Concentration polarization can be reduced further by A. pre-filtering the solution B. reducing the flow rate per…
Fluid Flow – Section 1 1. The viscosity of liquid was classified as both dilatant and rheopectic, which means that the viscosity A.…
Fermentation Kinetics – Section 2 1. An internal draft tube is preferred to an external draft tube because A. it is easier to…
Fermentation Kinetics – Section 1 1. The function of the disengagement zone in an airlift fermenter is to A. prevent CO2 rich bubbles…