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Fundamental Of Disease > Sterilization > Flashcards

Sterilization Flashcards

1
Q

Sterilization

A

Killing or removing all forms of microbial life in a material or an object

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2
Q

What is the most common way of sterilization ?

A

Heat

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3
Q

Spore structure

A

Hibernation , thick outer polypeptide that is hardly resistant

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4
Q

Bacteria that has spores

A

Bacillus anthrax,

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5
Q

Physical methods of sterilization

A

Freezing,

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6
Q

Ionizing

A

particulate electron beam

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7
Q

Filtration

A

Small pore(0.2 um)

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8
Q

HEPA filter

A

High efficiency particulate, used electromagnetic methods.

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9
Q

Dry heat

A

Incineration, flaming, desiccation, hot air sterilization

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10
Q

Moist heat

A

Coagulates protein and break hydrogen bonds

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11
Q

Example of moist heat

A

Boiling and stream

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12
Q

What is tyndallisation?

A

Ubuntu

B

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13
Q

Autoclaving

A

Steaming under pressure forces heat into cells.

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14
Q

What is the temp of autoclaving?

A

121

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15
Q

How an autoclave works ?

A

Nhdjs

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16
Q

Thermization

A

The application to milk of a heat treatment of a lower intensity than pasteurization that aims at reducing the number of microorgansations

17
Q

Commercial sterilization

A

The application of heat at high temperatures for a time sufficient to render milk or other products commercially stable.

18
Q

Pasteuration

A

The application of heat to milk and liquid milk products aimed at reducing the number of any pathogenic microorganisms to a level at which they do not contribute

19
Q

UHF pasteurization

A

Ihdiha

20
Q

Chemical halogen and halogen contains compounds.

A

Chlorine, iodine, iodophores , bromine, fluorine

21
Q

Miscallenous

A

Gaseous, heavy metals, dyes, acids and alkalies.

22
Q

Chemical used in sterilization

A

Phenols, alcohols , peroxide, aldehydes

23
Q

Combination of alcohol and iodine

A

Good killing effect

24
Q

Chlorhexidine glauconite

A

Does not kill tb or spores

25
Q

Osmotic pressures.

A

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Fundamental Of Disease (19 decks)

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