Are these statements about the D value true?
Statement 1: D -value is lower in acid foods.
Statement 2: D-value for the same organism varies depending on the food type.
a) True, False
b) True, True
c) False, True
d) False, False

Answer: b
Explanation: D value is defined as the time taken at a given temperature to eliminate at least 90% of the exposed microorganisms. It is suitable to examine the efficiency of thermal inactivation of different microbes under different conditions. D-value for the same microbes differs depending on the food type. In acid foods, the D value is lower and higher in protein rich foods.