Allied & ICAR Exam Bank • ALLIED_0710 MCQ • 1 Mark

Section 7: Dairy and Food Engineering

Thermal Processing and Kinetics

Subtopic: Thermal Processing and Kinetics

Question Statement:

The standard reference thermal sterilization value $F_0$ represents equivalent heating time at:

Options:

  • (A) $121.1^\circ\text{C}$ ($250^\circ\text{F}$) assuming a $z$-value of $10^\circ\text{C}$ ($18^\circ\text{F}$)
  • (B) $100^\circ\text{C}$ with $z = 5^\circ\text{C}$
  • (C) $63^\circ\text{C}$ for 30 minutes
  • (D) $135^\circ\text{C}$ with $z = 1^\circ\text{C}$

Answer Key:

A

Step-by-Step Solution & Explanation

$F_0$ is the standard lethality equivalent in minutes at $121.1^\circ\text{C}$ for organisms with $z = 10^\circ\text{C}$.
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