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Definition
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Definition
A chemical used to destroy many m/o and viruses |
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used in the food industry at high temps to kill pathogens and reduce the number of m/o |
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reduce pathogens to a safe level |
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used on utensils at a high temp with detergent
it substantially reduce m/o on objects
used for the public health |
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Definition
Used in the food industry to inhibit growth of pathogens
delays spoilage
silver nitrate and benzoic acid are used |
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in 5 minutes it destroys most m/o and viruses except endospores!
used for drinking water
Moist heat |
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Pasteurization Heating method |
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Definition
delays spoilage/ kills heat sensitive m/o
except sporeformers
used for milk and juice
moist heat |
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Definition
destroys endospores!
used to serilize utensils
Moist heat
15 minutes or longer |
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oxydizes cell components to ashes
used for medical wastes
innoculating loop
dry heat |
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Ionizing radiation
UV radiation |
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Definition
irradation: Dna damage
they disinfect drinking water
and hospital instuments |
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Definition
filter that retains microbes while letting suspended fluid or air pass through small holes
irridation: DNA damage |
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used for beer and wine
to sterilize heat sensitive medications |
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used in hospital rooms airplanes vaccum cleaners
to clean the air |
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Antiseptic to degerm skin
or to treat instruments |
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Liquid sterilant
can be very toxic
very strong/smelling
when working with place under hood
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gas sterilant, toxic, harsh sterilizes medical devices |
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inexpensive and available: disinfects objects, surfaces, water
halogen |
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chemical antiseptic that does not kill endospore |
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Copper that inhibits groth in fish tanks
silver which is very toxic but is used for topical dressings on burns |
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disinfects drinking and waste water |
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hydrogen peroxide, peracitic acid |
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smelly and irratation chemical |
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detergents toothpastes soaps lotions deodorant
phenolic |
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can cause neurological damage
phenolic |
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stronger than soap
can kill bacteria
used on food prep surfaces
preserves non-food substances
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Definition
physical way: low temp, freezing, desiccation (reducing water)
Chemical way: food preservatives: benzoic, sorbic, and propionic acids
Nitrate/ite: preserves meats |
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