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Wash out (as defined by D = µmax) of a continuous stirred tank fermenter is characterized by(X = biomass, S = substrate concentration in bioreactor, S0 = substrate concentration in feed, P = product concentration in bioreactor)
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- X = 0, S = 0, P = 0
- X = 0, S = S0, P = 0
- X = 0, S < 0, P = 0
- X < 0, S < 0, P < 0
Correct Option: B
Dilution rate is defined as rate of flow of medium into a continuous culture system. It is equal to the rate of cell division when the number of cell remains constant in vessels because the cells that are replaced by medium outflow by cell division equally. In continuous culture, rate of dilution regulates the rate of microbial growth through concentration of growth limiting nutrient in the medium. This is the advantage of this culture system.
