Which of the following are factors influencing the effectiveness of modified atmosphere packaging (MAP)?

TLS Online TPP Program

#Question id: 34349

#XL - S Microbiology

Which of the following plots can be used to determine TDT and Z-value?

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#Question id: 34350

#XL - S Microbiology

Which of the following conclusions can be drawn if TDT decreases as temperature increases?

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#Question id: 34351

#XL - S Microbiology

A microbial population is reduced from 1 × 10⁶ CFU/mL to 1 × 10³ CFU/mL after 9 minutes at 121°C. Assume first-order kinetics. What is the D-value (in minutes) at 121°C?

TLS Online TPP Program

#Question id: 34352

#XL - S Microbiology

The D-value for a microorganism is 4 minutes at 120°C and 0.4 minutes at 130°C.

What is the Z-value (in °C)?

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#Question id: 34353

#XL - S Microbiology

The D-value at 121°C for a bacterial spore is 2 minutes.

How long (in minutes) will it take to reduce the population from 1 × 10⁶ to 1 cell?

TLS Online TPP Program

#Question id: 34354

#XL - S Microbiology

If a heat treatment at 70°C with a D-value of 5 minutes is applied for 20 minutes, how many log reductions of the microorganism population will occur?