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The change in temperature required to obtain on logy change in bacterial load is referred as
EXPLANATION
Thermal Processing Lethality Kinetics
- Thermal Death Kinetics Definitions:
- $D$-value (Decimal Reduction Time): Time in minutes at a given constant temperature required to reduce the microbial population by $90\%$ ($1\text{ log}_{10}$ cycle).
- $Z$-value: The change in temperature ($^\circ\text{C}$ or $^\circ\text{F}$) required to alter the $D$-value by a factor of 10 ($1\text{ log}_{10}$ cycle):
- $F$-value: Total equivalent heating time at a reference temperature ($121.1^\circ\text{C}$) to achieve a specified lethality.
- $Q_{10}$ value: Temperature coefficient for a reaction rate change per $10^\circ\text{C}$ rise.
- Correct Option: Option 3 (Z value).
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