Nitrogen Flushing
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Questions and Answers

What happens to the smell and taste of oil and fat containing food items when left for a long time?

  • They remain unchanged
  • They change due to oxidation (correct)
  • They become more aromatic
  • They become sweeter
  • What is done to slow down the process of oxidation of food items?

  • Exposing to sunlight
  • Flushing with nitrogen (correct)
  • Heating at high temperature
  • Adding more oil or fat
  • Why are oil and fat containing food items flushed with nitrogen?

  • To reduce the calorie content
  • To avoid oxidation (correct)
  • To increase the shelf life
  • To enhance the flavor
  • Study Notes

    Effects of Time on Oil and Fat Containing Food Items

    • When left for a long time, the smell and taste of oil and fat containing food items deteriorate due to oxidation.

    Slowing Down Oxidation

    • To slow down the process of oxidation, food manufacturers use various methods, including:
      • Controlling temperature and humidity
      • Excluding air or oxygen
      • Adding antioxidants
      • Using airtight packaging

    Nitrogen Flushing

    • Oil and fat containing food items are flushed with nitrogen to remove oxygen, thereby slowing down the oxidation process and preserving the quality of the product.

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    Description

    Test your knowledge about food preservation techniques by taking this quiz on nitrogen flushing. Learn about how nitrogen flushing helps in slowing down the oxidation process of oil and fat containing food items, preventing changes in taste and smell.

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