Question:
Which of the following value is related to sterilization process ?
Which of the following value is related to sterilization process ?
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The \(F_0\) value is calculated using the equation:
\[ F_0 = \int 10^{\frac{T(t) - 121.1}{z}} dt \]
This integrates the temperature-time profile to measure the cumulative sterilizing effect of a heat process.
Updated On: Jul 21, 2026
- E - value
- F - value
- G - value
- H - value
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
Thermal death time parameters are used in food engineering to measure the sterilizing effect of heat treatments on microorganisms and their spores.
Step 2: Detailed Explanation:
The F-value (or thermal death time) is the standard parameter used to measure the total lethality of a sterilization process.
It represents the time (in minutes) required at a specific reference temperature to reduce a microbial population to a specified low level.
In food canning and dairy sterilization, the reference temperature is typically \(121.1\ ^\circ\text{C}\) (\(250\ ^\circ\text{F}\)), and the F-value is calculated based on a reference z-value of \(10\ ^\circ\text{C}\).
This specific value is written as \(F_0\).
For example, a process with an \(F_0\) value of 3 minutes has the same sterilizing effect as holding the food at \(121.1\ ^\circ\text{C}\) for exactly 3 minutes.
This ensures that highly heat-resistant bacterial spores, such as those of *Clostridium botulinum*, are destroyed.
The values E, G, and H are not standard parameters used to measure thermal process lethality.
Step 3: Final Answer:
The value related to the sterilization process is the F - value.
Thermal death time parameters are used in food engineering to measure the sterilizing effect of heat treatments on microorganisms and their spores.
Step 2: Detailed Explanation:
The F-value (or thermal death time) is the standard parameter used to measure the total lethality of a sterilization process.
It represents the time (in minutes) required at a specific reference temperature to reduce a microbial population to a specified low level.
In food canning and dairy sterilization, the reference temperature is typically \(121.1\ ^\circ\text{C}\) (\(250\ ^\circ\text{F}\)), and the F-value is calculated based on a reference z-value of \(10\ ^\circ\text{C}\).
This specific value is written as \(F_0\).
For example, a process with an \(F_0\) value of 3 minutes has the same sterilizing effect as holding the food at \(121.1\ ^\circ\text{C}\) for exactly 3 minutes.
This ensures that highly heat-resistant bacterial spores, such as those of *Clostridium botulinum*, are destroyed.
The values E, G, and H are not standard parameters used to measure thermal process lethality.
Step 3: Final Answer:
The value related to the sterilization process is the F - value.
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