Question

What is the pore size of the nitrocellulose?

(a) 0.25 µ

(b) 0.28 µ

(c) 0.22 µ

(d) 0.20 µ

I had been asked this question during a job interview.

The query is from Filter Sterilization topic in chapter Sterilization of Fermentation Technology

Answer 1

The correct choice is (c) 0.22 µ

The explanation is: The pore size of the nitrocellulose filter is 0.22 µ. They are the most commonly used filters in filtration sterilization. It has a powerful binding technique and is also used to study DNA-protein interactions.