TLS Online TPP Program
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TLS Online TPP Program
#Question id: 21063
#Unit 12. Biochemical Engineering
To have an overall yield of greater than 50% in a three step purification process for a food additive, the minimum average step yield(%) necessary would be around:
TLS Online TPP Program
#Question id: 21065
#Unit 12. Biochemical Engineering
In a batch sterilization process if ∇overall , ∇heating & ∇cooling are 32.2, 9.8 & 10.1 respectively, THEN the holding time at 121ºC of the process is (given that the specific
death rate (k) of microorganisms at 121ºC is 2.54 min-1 ):
TLS Online TPP Program
#Question id: 20830
#Unit 12. Biochemical Engineering
Consider the scale up of a fermentation from a 10 L to 10,000 L while maintaining geometric similarity. Agitation speed was maintained at 500 rpm in the 10 L fermenter. If scale up is done based on constant tip speed, then the agitation speed in the larger reactor should be ………….rpm
TLS Online TPP Program
#Question id: 20834
#Unit 12. Biochemical Engineering
In a typical fermentation process the volumetric oxygen transfer coefficient (KLa) of the system was found to increase after the addition of antifoam agent. The most probable reason for this is:
TLS Online TPP Program
#Question id: 20840
#Unit 12. Biochemical Engineering
The driving force for mass transfer by molecular diffusion is the difference in
TLS Online TPP Program
#Question id: 20559
#Unit 12. Biochemical Engineering
In a bioprocess, assume that only cell mass is formed. Due to a variation in process conditions, if the microbial cell yield has halved, what would be the rate of substrate
consumption to maintain the same rate of cell mass production?