Question

All these are good reasons to choose a phenol based product. 33. The best method to remove microbes from heat-sensitive liquids for use in the laboratory is:

a. dry heat autoclave.
b. pasteurization
c. adding iodine tablets.
d. gas sterilization.
e. filtration.

Answer 1

Filtration is the most suitable method for removing microbes from heat-sensitive liquids in the laboratory, as it avoids the use of heat or chemicals that could alter the liquid's properties.

Step-by-step explanation:

The best method to remove microbes from heat-sensitive liquids for use in the laboratory is filtration. This technique effectively separates microorganisms from fluids without exposing the liquid to damaging high temperatures that could alter its chemical composition or functionality.

Unlike methods such as dry heat autoclaving and pasteurization, which apply heat and could damage heat-sensitive fluids, or adding iodine tablets and gas sterilization that introduce chemicals or require specific equipment and procedures, filtration mechanically separates bacteria, viruses, and other microbes based on size exclusion, thus it's ideal for preserving the integrity of sensitive liquids.