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Pasteurization Quiz

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Questions and Answers

What is the purpose of pasteurization?

To increase the number of microbes in foods

To change the taste of foods

To preserve foods for a longer time

To reduce the number of microbes in foods (correct)

Which method of pasteurization involves heating at 72˚C for 15 sec?

Batch method

Continuous flow method (correct)

Rapid method

Instant method

What is the purpose of UV air in sterilizing systems?

To increase the growth of microorganisms

To cause DNA/RNA damage to microorganisms (correct)

To reduce the shelf life of products

To improve the taste of food

What is the decimal reduction time?

<p>The time it takes to reduce the number of viable organisms by 10-fold</p> Signup and view all the answers

How does ionizing radiation control microbial growth?

<p>By damaging DNA, RNA, and proteins</p> Signup and view all the answers

Study Notes

Pasteurization

The purpose of pasteurization is to reduce the number of pathogens in a product, making it safe for consumption.

Methods of Pasteurization

The "Higher Heat Shorter Time" (HHST) method involves heating at 72˚C for 15 seconds.

UV Sterilization

The purpose of UV air in sterilizing systems is to reduce microbial contamination.

Decimal Reduction Time

The decimal reduction time is the time required to reduce the microbial population by 90% at a given temperature.

Ionizing Radiation

Ionizing radiation controls microbial growth by damaging the DNA of microorganisms, making it difficult for them to reproduce.

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Description

Test your knowledge of microbial growth control with this quiz on pasteurization! Learn about the process of pasteurization and its application methods, including batch and continuous flow. See how well you understand the use of heat to reduce or kill microbes in heat-sensitive liquids.