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Chapter: Microbiology and Immunology: Sterilizationand Disinfection

Factors Influencing Activity of Disinfectants

Various conditions influencing the efficiency of disinfectant are as follows:

Factors Influencing Activity of Disinfectants

Various conditions influencing the efficiency of disinfectant are as follows:

Temperature: Increase in temperature increases theefficiency of disinfectants.

Type of microorganism: Vegetative cells are more suscep-tible than spores. Spores may be resistant to the action of disinfectants.

Physiological state of the cell: Young and metabolicallyactive cells are more sensitive than old dormant cells. Nongrowing cells may not be affected.

Environment: The physical or chemical properties of themedium or substance influence rate as well as efficiency of disinfectants, e.g., pH of the medium and presence of extraneous materials.


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Microbiology and Immunology: Sterilizationand Disinfection : Factors Influencing Activity of Disinfectants |


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