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The reduction of number of cells from 1010 to one will result into the del factor (Δ) of
Explanation for the correct option: Step 1: Given data. The initial number of microbial cells. ... Step 2: Applying the formula. Del factor = ln A ° A t where is the initial number of microbial cells and is number of cells after some time. ... Step 3: Solving the equation to get the required value.Read more
Explanation for the correct option:
See lessStep 1: Given data. The initial number of microbial cells. …
Step 2: Applying the formula. Del factor = ln A ° A t where is the initial number of microbial cells and is number of cells after some time. …
Step 3: Solving the equation to get the required value. Del factor.
For laminar flow of Newtonian fluid through a smooth round pipe, the ratio of average fluid velocity to the maximum velocity is
For a fully developed laminar viscous flow through a circular pipe, the maximum velocity is equal to twice the average velocity
For a fully developed laminar viscous flow through a circular pipe, the maximum velocity is equal to twice the average velocity
See lessThe heat conduction in dry air is
The heat conduction dry air is approximately 0.026W/(m*°K) {Watts of heat conducted through a one meter a one Kelvin temperature difference }.
The heat conduction dry air is approximately 0.026W/(m*°K) {Watts of heat conducted through a one meter a one Kelvin temperature difference }.
See lessThe number of baffles in a standard stirred tank bioreactor is
Microbial culture vessels are generally provided with four baffles placed equidistant around the periphery of the tank.
Microbial culture vessels are generally provided with four baffles placed equidistant around the periphery of the tank.
See lessThe specific growth rate (μ) is defined as
The specific growth rate period is defined as the rate of increase of biomass of a cell population per unit of biomass concentration.
The specific growth rate period is defined as the rate of increase of biomass of a cell population per unit of biomass concentration.
See lessThe contents in jet loop reactor are mixed through
Loop reactors are used in place of batch stirred tank reactors in a variety of applications including chlorination, ethoxylation, hydrogenation and polymerization. A loop reactor is typically much smaller than a batch reactor producing the same amount of product.
Loop reactors are used in place of batch stirred tank reactors in a variety of applications including chlorination, ethoxylation, hydrogenation and polymerization. A loop reactor is typically much smaller than a batch reactor producing the same amount of product.
See lessIn an airlift bioreactor, the spent gases released from the liquid are called
Airlift reactors (ALRs) are pneumatically agitated bioreactors where the injection of a gas stream into a specific reactor compartment, the riser, causes the reaction broth to circulate between the riser and an interconnected downcomer compartment containing a smaller (or negligible) gas phase.
Airlift reactors (ALRs) are pneumatically agitated bioreactors where the injection of a gas stream into a specific reactor compartment, the riser, causes the reaction broth to circulate between the riser and an interconnected downcomer compartment containing a smaller (or negligible) gas phase.
See lessWhich of the following is correct for the prediction of time requirement in a batch fermenter?
Batch fermentation is what is described as a 'closed system', whereby the substrate and producing microorganism are added to the system at time zero and are not removed until the fermentation is complete. This represents the simplest and most commonly employed method of fermentation for the productiRead more
Batch fermentation is what is described as a ‘closed system’, whereby the substrate and producing microorganism are added to the system at time zero and are not removed until the fermentation is complete. This represents the simplest and most commonly employed method of fermentation for the production of bacteriocins.
See lessThe increased air flow rate in bubble column fermenter can cause excessive foaming and high retention of air bubbles in the column which
Aerobic fermentations are known to be prone to excessive foaming due to surface-active substances in the culture broth
Aerobic fermentations are known to be prone to excessive foaming due to surface-active substances in the culture broth
See lessThe region of an airlift bioreactor in which the liquid travels in a downward direction is called the
The disengagement zone can add volume to the reactor, reducing the foaming to minimize recirculation of bubbles through the down-comer. The sudden widening at the top of the reactor slows the bubble velocity and thus disengages the bubbles from the liquid flow.
The disengagement zone can add volume to the reactor, reducing the foaming to minimize recirculation of bubbles through the down-comer. The sudden widening at the top of the reactor slows the bubble velocity and thus disengages the bubbles from the liquid flow.
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