Question

What is other name for zonal centrifugation?

(a) Isopyniccentrifugation

(b) Gradient centrifugation

(c) Density gradient centrifugation

(d) Differential centrifugation

I have been asked this question during a job interview.

I need to ask this question from Mechanical Separation topic in portion Mechanical Separation of Food Processing Unit Operations

Answer 1

Right option is (b) Gradient centrifugation

The explanation is: Zonal centrifugation is also known as band or gradient centrifugation and relies on the concept of sedimentation coefficient. In this process, a density gradient is created in a test tube with sucrose and high density at the bottom.