FDT 2204 Food Preservation Introduction Quiz
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Questions and Answers

What is the main temperature range for chilling food?

  • 4-5oC
  • 0-15oC (correct)
  • 0-5oC
  • 0-35oC
  • How is the killing principle related to food preservation?

  • By promoting spoilage microorganisms
  • By inhibiting enzyme action
  • By encouraging microbial growth
  • By preventing microbial contamination (correct)
  • Which method employs heat to achieve the killing principle?

  • Heat treatment (correct)
  • Use of gases
  • Irradiation
  • Blanching
  • How do radiations kill microorganisms in food?

    <p>By creating toxic reactive compounds</p> Signup and view all the answers

    What is the purpose of blanching in food preservation?

    <p>To prevent oxidation</p> Signup and view all the answers

    Why is food preservation important?

    <p>To increase the self-life of foods</p> Signup and view all the answers

    What is the principle behind food preservation by inhibition methods?

    <p>Reduction of water activity</p> Signup and view all the answers

    How can food be preserved by lowering pH?

    <p>Fermentation and addition of acids</p> Signup and view all the answers

    Which method is used to achieve lower water activity in food preservation?

    <p>Addition of high sugar content</p> Signup and view all the answers

    How does fermentation contribute to food preservation?

    <p>Breaks down carbohydrates into alcohol or lactic acid</p> Signup and view all the answers

    What effect does smoking have on food preservation?

    <p>Has a drying and preservative effect</p> Signup and view all the answers

    What happens to food preserved by inhibition methods if the inhibiting influence is removed?

    <p>Organisms present will grow and cause spoilage</p> Signup and view all the answers

    What is the main purpose of food preservation?

    <p>To prevent foods from spoiling</p> Signup and view all the answers

    Which of the following is NOT a benefit of food preservation?

    <p>Decreasing the nutritive values of food</p> Signup and view all the answers

    What is the purpose of using physical and/or chemical agents in food preservation?

    <p>To prevent microbial spoilage</p> Signup and view all the answers

    Which principle of food preservation involves preventing or delaying the action of microorganisms?

    <p>Inhibition principle</p> Signup and view all the answers

    How does food preservation contribute to making food products last for a long period of time?

    <p>By preventing spoilage and maintaining quality</p> Signup and view all the answers

    In food preservation, what is the primary objective of destroying organisms or delaying their growth in food?

    <p>To maintain the original quality of food</p> Signup and view all the answers

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