Sterilisation, Pasteurisation, Cooking

Question 1

Lethal rate

Answer 1

the ratio of D- value at any temp to that at a reference temp

Question 2

Biot number

Answer 2

the ratio of conductive to conductive resistance

[ no unit]

Question 3

High Bi
Low Bi
Bi > 40
Bi

Answer 3

High Bi = Conductive resistance dominate
Low Bi = Conductive dominate
Bi > 40 = ignore convection
Bi

Question 4

C- value

Answer 4

the ‘quality’ factor of how the degree of heat treatment induced chemical, biochemical and texture changes in products