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Chapter 7 Microbiology an introduction 12th edition
Microbial Growth
7
Microbiology
Undergraduate 2
10/07/2017

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Term
Sterilization
Definition
Removal or destruction of all living microbial life including endospores but possible exception of prions. Usually done by steam under pressure or a sterilizing gas, such as ethylene oxide.
Term
Sterilant
Definition
Sterilization agent
Term
Commercial Sterilization
Definition
Sufficient heat treatment to kill endospores of clostridium botulinum in canned food. More resistant endospores of thermophilic bacteria may survive, but they will not germinate and grow under normal storage condiitons.
Term
Disinfection
Definition
Destruction of vegatative pathogens on inanimate objects. May make use of physcical or chemical methods.
Term
Antisepsis
Definition
Destruction of vegatative pathogens on living tissue. Treatment is almost always by chemical antimicrobials.
Term
Degerming
Definition
Removal of mirobes from a limited area, such as the skin around an injection site.
Term
Sanitization
Definition
Treatment is intended to lower microbial counts on eating and drinking utensils to safe public health levels. Can be done by high temp washing or by dipping into chemical disinfectant.
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