Quasi – steady state in fed batch is when?(a) Growth rate remains constant(b) Dilution remains constant(c) Growth rate changes variably(d) μ remains constantI had been asked this question in an interview for job.My doubt stems from Fed Batch Culture in division Microbial Growth Kinetics of Bioprocess Engineering

Quasi – steady state in fed batch is when?(a) Growth rate remains co

1.	Quasi – steady state in fed batch is when?(a) Growth rate remains constant(b) Dilution remains constant(c) Growth rate changes variably(d) μ remains constantI had been asked this question in an interview for job.My doubt stems from Fed Batch Culture in division Microbial Growth Kinetics of Bioprocess Engineering
Answer» Right ANSWER is (c) Growth RATE changes variably Easy explanation: The MAJOR difference between the steady state of a CHEMOSTAT and the quasi steady state of a fed batch culture is that μ is constant in the chemostat but decreases in fed-batch. However, in the genuine steady state of a chemostat, dilution rate and growth rate are constant whereas in a fed-batch quasi steady state they change over the time of fermentation.

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