The decimal reduction time for boiling this organism is 5.4 minutes.
- The number of minutes exposure to a specified temperature required to reduce viable bacteria by 90% is known as the D-value (decimal reduction time).
- Thirdly, the concept of decimal reduction time (DRT or D value) is connected to bacterial heat resistance. DRT is the amount of time, in minutes,
- That it takes for 90% of a population of bacteria to be destroyed at a particular temperature.
- In terms of usefulness, this measurement is crucial for determining how well bacteria are inactivated by heat under various settings, particularly when preparing and preserving food.
Total bacteria = 1000
500 bacteria die in 3 minutes
1000 bacteria will die in 6 minutes
90% of 1000 = 900
900 bacteria will die in = 900 X 3/500
= 27/5
= 5.4 minutes
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