2- Sterilisation Flashcards
Define pasteurisation
The inactivation of pathogens/microorganisms in food production system.
Heat treatment
Name the most effective monitoring method of sterilisation
TST strips
Name 3 types of sterilisation methods
Chemical, Gas, Pressure
what is gas sterilisation
Ethylene oxide inactivates the DNA of the cells
Highly toxic
What heat does pasteurisation need to go above?
140 degrees
Sterilisation is the combination of what?
Steam, heat and pressure
How long can autoclaved items be stored for?
1 year
what is pasteurisation not effective against
spore creating bacteria
name a disadvantage of gas sterilisation
cycles are either 12 or 24 hours which can’t be interrupted
what is gas sterilisation good for
non-auto-clavable products such as endoscopes
describe chemical sterilisation
Mainly liquid forms and would be considered more disinfection
not a very effective method of sterilization
