Controlling Microbes Flashcards
Sterilization is defined as
All viable organisms dead or removed
Disinfection is defined as
Killing or inhibiting all pathogens
Sanitization is defined as
Reduction of microbe levels to safe standards
Antisepsis is defined as
Prevention of microbial infection in living tissue
Chemotherapy is defined as
The use of chemicals to kill or inhibit pathogens within living tissue
D-value
Time taken for a 10X reduction in microbial population
Z-value
Number of degrees of temperature increase needed to achieve a 10x reduction in D-value
Hepa uses physical retention and …
Electrostatic charges
does pasteurization sterilize?
No
is dry or moist heat a more effective sterilizer?
Moist
How does UV light kill?
Forms thymine dimers, DNA cant be transcribed
Mechanism of action of Phenolics
Denture proteins, disrupt membranes
is alcohol sporicidal?
No
How do Halogens kill?
Oxidize cell components, iodine iodates proteins
Banzalkonium is a type of?
Quaternary ammonium compounds