Physical and Chemical Agents - Medical Science

Q1:

The time required to kill 90% of the microorganisms in a sample at a specific temperature is the

A decimal reduction time

B thermal death point

C F value

D D value

ANS:D - D value

The D-value, which denotes the decimal reduction time, is the time required at a specific temperature and under specified conditions to reduce a microbial population by 90% it could also be denoted as decimal reduction time.