Question
Physical methods of microbial control include which of the following? Select all correct options filtration heavy metals dry and moist heat halogens pasteurization
Solution
4.3
(283 Votes)
Melvin
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Answer
The physical methods of microbial control from the provided options are:* **Filtration:** This method physically removes microbes from liquids or gases using a filter.* **Dry and moist heat:** Heat denatures proteins, effectively killing microorganisms. Dry heat includes methods like incineration and hot air ovens. Moist heat includes methods like autoclaving, boiling, and pasteurization.* **Pasteurization:** This is a specific type of moist heat treatment that reduces microbial load in heat-sensitive liquids like milk.Heavy metals and halogens are *chemical* methods of microbial control, not physical.