Question

_______ of a microorganism is the lowest temperature at which all microbes are killed in a 10-minute exposure.

(a) F0 value

(b) Thermal death time

(c) D value

(d) Thermal death point

I got this question during an interview.

Question is from Heat Transfer Applications topic in portion Heat Transfer Applications of Food Processing Unit Operations

Answer 1

Correct answer is (d) Thermal death point

To explain I would say: Thermal death point is be defined as the lowest temperature at which all the microorganisms are killed in a 10-minute exposure and it varies depending on the microbes. Thermal death point gives the idea of the effect of heat on the microbes.