P2.1 PHYSICAL METHODS of disinfection Flashcards
1
Q
(3) PHYSICAL METHODS of disinfection:
A
- boiling
- pasteurization
- non-ionizing radiation
2
Q
- destroys vegetative cells
- not their spores
effective indication?
A
Boiling
100 degrees C - 15-30 mins
3
Q
preservation of dairy products & alcoholic beverages
A
Pasteurization
4
Q
(3) types of Pasteurization:
A
- batch
- flash
- UHT - ultra high temperature
5
Q
Batch method
A
62.5 degrees C - 30 mins.
6
Q
Flash method
A
72 degrees C - 15 secs.
7
Q
UHT
A
72-110 degrees C - 5 seconds
8
Q
low energy long wavelength ULTRA VIOLET RAYS
A
non-ionizing radiation
