BIOL-N - Biology BIOL-N 100 Chapter Notes - Chapter 7: Sodium Benzoate, Silver Nitrate, Sodium Nitrate

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Biology N100
The Control of the Growth and Transmission of Pathogens
Control of Pathogen Growth
Sterilization
Kills all organisms in or on material
Disinfection
Reduction of pathogenic organisms on or in materials reduced
risk of disease
Disinfectants
Applied to non-living objects
Most don’t kill bacterial spores
Antiseptics
Applied to living tissue
Sanitization
Types of Disinfectants/Anticeptics
Phenols and Derivatives
Lysol
Halogens
Bleach
Iodine
Tincture
Betadine
Alcohols
Ethanol
Isopropanol (rubbing alcohol)
Heavy metals
Silver (silver nitrate), mercury (mercuric chloride,
mercurochrome)
Surfactants (soaps)
Food preservatives
Potassium sorbate, Sodium benzoate
Calcium propionate
Sodium nitrate, sodium nitrite
Oxidizing Agents
Hydrogen peroxide
Other Methods of Controlling Pathogen Growth
Heat/Cold
Dry heat
Moist heat
Pasteurization
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