sanitation for micro exam 2

Levels of sanitation for fomites

1-sanitation

2-Disinfectant

3 -sterilization

Sanitation

Reduce the number of microbes to a tolerant amount

Use Dishwasher, laundry

Disinfectant

Remove most microbes

Use Alcohol, chemicals

Sterilization

Removes all microbes

Use auto clave, radiation

Levels of sanitation for humans

1- degerming

2-Antisepsis

Thermal death point

Temp at which all microbes die within 10 min

Pasteurization

Heat to 161 ferinheight for 15 min refrigerate

UHT

Heat to 260 ferinheight for 2 seconds, shelf stable

HEPA

Small pores filter microbes from air

Alcohol

Disrupts and destabilizes membrane

Bacteria, enveloped viruses, fungi

Good because cheap, fast

Bad bc evaporates fast

Chlorine

Destroys cell

Bacteria, fungi, viruses, spores

Good bc cheap broad spectrum

Bad bc Corrosive, irritant

Iodine

Oxidizes proteins, nucleotides & lipids

Bacteria, enveloped viruses, fungi

Good bc cheap, broad spectrum

Bad bc irritant, thyroid effects

Phenolic

Denatures & disrupts membrane

Bacteria, enveloped viruses, fungi

Good bc broad spectrum, no residue

Bad bc irritant, decomposes fast

Quats

Disrupts membrane

Bacteria, Enveloped viruses, fungi

good bc household use