Membrane filter technique is one of the methodologies in MLT, There the sample is filtered through a membrane with a pore size of ___________
- 0.45 μm
- 0.4 μm
- 45.0 μm
- 0.04 μm
Answer A.0.45 μm.
why 0.45 μm filter is used here , for microbial retention and flow rate. The primary goal of MLT is to catch common objectionable microorganisms and pathogens (like Escherichia coli, Pseudomonas aeruginosa, Salmonella, and Staphylococcus aureus).bacteria typically range from 0.5 µm to 1.0 µm in width and 1.0 µm to 3.0 µm in length. Because a 0.45 µm pore is smaller than the smallest dimension of these target vegetative bacteria, the membrane acts as a physical barrier that reliably traps them on the surface.
