What is batch growth kinetics?
Batch growth kinetics of a microbe follows a growth curve with lag phase as the initial phase during which cells adapt to a new environment. The continuous growth kinetics accessed by a perpetual feeding process in which the growth is controlled by the concentration of the rate limiting nutrient [5].
During which phase the growth rate is maximum in a batch fermentation?
The fermentation may be divided into two phases—the “rapid-growth” phase, during which the culture grows at μmax, and the “slow-growth” or “production” phase. Glucose feeds may be used to control the metabolism of the organism during both phases.
What is a batch culture Why is growth limited in a batch culture?
batch culture A technique used to grow microorganisms or cells. A limited supply of nutrients for growth is provided; when these are used up, or some other factor becomes limiting, the culture declines. Cells, or products that the organisms have made, can then be harvested from the culture. A Dictionary of Biology.
What is the major limitation to growth in batch culture fermentation?
The major disadvantage of batch cultivation is its low productivity due to its high downtime (nonproduction time which is used for cleaning, sterilization, and startup of another batch cultivation) during two batch cultivations.
How do you find the maximum growth rate?
rmax = maximum population growth rate (intrinsinc rate of increase, equal to per capita birth rate minus per capita death rate; (remember what is implied by the term RATE!))
What factors limit growth during the stationary phase of a batch culture?
The stationary phase is often due to a growth-limiting factor such as the depletion of an essential nutrient, and/or the formation of an inhibitory product such as an organic acid.
How do you find Ks in a Monod equation?
The Ks value was shown in the article in equation (27) as: Ks = [X(at D =>0)]/Y – S(0) (27), where Y is the economic coefficient; X (at D =>0) is the equilibrium concentration of biomass, if D => 0.
