Agricultural Engineering > GATE 2023 > Microbial Kinetics
The microbial death kinetics for a food suspension follows the equation N = N0 * 10-(t - tl)/D where N0 initial microbial load, N microbial load after time t, tl lag time and D decimal reduction time. The correct statement for this equation is
A
the time required to reduce 10% of the initial population is lag time.
B
the time required to reduce the initial 90% of population is lag time
C
time required to kill the first 90% population is lower than D value at the same temperature
D
lag time approaches D value as N0 becomes smaller and temperature decreases.

Correct : c

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