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Microbial Controls

Physical Methods

QuestionAnswer
Moist Heat Protein Denaturation, kills vegetative bacterial and fungal pathogens and almost all viruses within 10 minutes. Less effective for endospores
Autoclave Protein denaturation, 15 psi pressure and 121 degrees Celcius for 15 minutes
Pasteurization Protein denaturation. Heat treatment for milk 72 degrees for 15 minutes
Direct flaming burns contaminates to ashes
Incineration burns contaminates to ashes
Hot Air sterilization Oxidation - very effective 170 degrees for 2 hours
Filtration separation of bacteria from liquid. Used if heat can damage contents
Created by: BiologyBee
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