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16 Cards in this Set
- Front
- Back
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What is pasteurisation |
Lowers microbial numbers for preventing spoilage |
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What is sterilisation |
Kills all microbes |
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What is decontamination |
Cleans an area for future use by use of detergents |
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What is disinfection |
Lowers microbial numbers for preventing infection by use of disinfectants or antiseptics |
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What is treatment |
Lowers microbial numbers for preventing and curing disease |
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What is bacteriocidal |
Kills bacteria |
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What is bacteriocidal |
Inhibits bacterial growth |
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What is the decreasing order of resistance of microorganisms to disinfect and sterilisation |
Resistant to susceptible Bacterial spores Mycobacteria Small non enveloped virus Gram negative bacteria Large non enveloped viruses Gram positive bacteria Lipid enveloped viruses |
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What is sterilisation by use of heat (steam) used to kill |
High heat kills bacteria including thermophiles |
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What is the standard temperature protocol for sterilisation using heat (steam) |
Heating at 121°C for 15 minutes at high pressure 100kPa |
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What kind of bacteria does sterilisation with heat (steam) kill |
Both vegetative bacteria and spies |
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How long can sterilisation with heat (steam) be prolonged for under certain situations |
30,45,60 minutes |
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What is an example of when sterilisation by heat (steam) would be prolonged |
Oils need longer sterilisation time than water as well as large volumes greater than tow litres |
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How long do items need to be exposed to become sterilised by UV (non ionising) |
10-15 minutes |
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Where is UV light used for sterilisation |
In laminar flown cabinets for ensuring an aseptic environment for micro work |
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How does UV (non ionising) sterilise equipment |
Kills bacteria by numerous DNA mutations |
