Filtration physically removes microbes without killing them, unlike heat, UV, chlorine, and desiccation which kill or inhibit microbial growth.
Filtration is the physical method used to control the presence of microorganisms that does not actually kill microbes or inhibit their growth but removes them physically from samples. This process involves passing a liquid or gas through a filter with tiny pores that trap and remove the microbes.
On the other hand, methods like heat, UV, chlorine, and desiccation are used to kill or inhibit the growth of microorganisms by disrupting their membranes, proteins, or nucleic acids rather than physically removing them like filtration does.
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