Allied & ICAR Exam Bank • ALLIED_0714 MCQ • 1 Mark

Section 7: Dairy and Food Engineering

Thermal Processing and Kinetics

Subtopic: Thermal Processing and Kinetics

Question Statement:

The index organism currently used to establish the minimum pasteurization time-temperature standards for milk is:

Options:

  • (A) *Coxiella burnetii* (the causative agent of Q-fever)
  • (B) *Escherichia coli*
  • (C) *Lactobacillus acidophilus*
  • (D) *Bacillus subtilis*

Answer Key:

A

Step-by-Step Solution & Explanation

*Coxiella burnetii* is the most heat-resistant vegetative pathogen found in raw milk, replacing *Mycobacterium tuberculosis* as the standard index organism.
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