1
Q
What is the reference temperature for sterilisation?
A
121.1C
2
Q
What is the D value?
A
Time to reduce population by 90%
3
Q
What is recommended for commercial sterility?
A
12D cook
4
Q
What is z value?
A
Temperature range to reduce D values by 90%
5
Q
What is lethality?
A
Destruction at any temperature relative to 121C
6
Q
What is lethality as an equation?
A
L=D1/D2
7
Q
What is lethality as an equation using z value?
A
L=10^(T1-T2/z)
8
Q
What is F value?
A
Time required to produce lethality equivalent to that provided at 121.1C
9
Q
What is the formula for F value?
A
F=Ft^z
10
Q
What is Ft?
A
F value at a specific temperature
11
Q
What is F0?
A
F value when temperature is 121.1C and z value is 10C
12
Q
What is the F0 value for commercial sterility?
A
12
Exam 3
flashcards
Decks in class (12)
# Cards
-
Thermal treatment16
-
Food borne diseases and parasites16
-
HACCP12
-
Bacterial hazards and testing11
-
Toxins and pesticides24
-
Food preservation17
-
Cooling and freezing5
-
Food irradiation20
-
High pressure processing14
-
Food bourne pathogens44
-
Gram negative and gram positive bacteria14
-
Thermal sterility12
