Question

What is the pore size of the filtration membrane to remove bacteria?

(a) 0.25 µm

(b) 0.22 µm

(c) 0.27 µm

(d) 0.26 µm

I got this question by my college director while I was bunking the class.

I'd like to ask this question from Media Design and Preparation for Bioprocesses in portion Equipping a Fermentation Laboratory, the Design and Preparation of Media for Bioprocesses of Fermentation Technology

Answer 1

The correct option is (b) 0.22 µm

For explanation I would say: The pore size of the filtration membrane to remove the bacteria is 0.22 µm. Filtration is very useful in removal for unnecessary components of the medium. The sterility of the filtration is also an important aspect.