Downstream Processing MCQs

Concentration polarization can be reduced further by

A system which require less solvent and produces a more concentrated extract phase, is desired with a

The efficiency of cell disruption in a bead mill depends on the

A common filter medium is the cloth filter generally made of

An ion exchange resin is composed of

Maintenance cost varies from

The optimum wet solid content for the cell suspension for a bead mill is typically somewhere between

Assuming the laminar flow across the filter, the rate of filtration (dVf/dt) can be expressed as a function of pressure drop Dp by the modified D'Arcy's equation as (where A is the area of filtering surface, K is the D'Arcy's filter cake permeability and L is the thickness of the filter cake)

Filtration leaf test results indicate that the filtration rate of a protein product is 100 dry lbs/(ft2 hr). What size production filter would be required to obtain 100 dry lbs of filter cake/hr?