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Questions and Answers
What is the primary mechanism by which freezer burn occurs on frozen food?
What is the primary mechanism by which freezer burn occurs on frozen food?
- Microorganisms breaking down the food's fatty acids
- Water condensing onto the surface of the food
- Electrical currents being passed through the food
- Water evaporating into the package's air spaces (correct)
Which preservation method involves the use of low doses of gamma rays, x-rays, or electrons?
Which preservation method involves the use of low doses of gamma rays, x-rays, or electrons?
- Freezing
- Ohmic heating
- Pasteurization
- Irradiation (correct)
What is the primary purpose of pasteurization?
What is the primary purpose of pasteurization?
- To change the texture of food
- To destroy microorganisms and extend shelf life (correct)
- To add flavor and aroma to food
- To create a sterile environment for food processing
What is the result of the breakdown of polyunsaturated fatty acids in fats?
What is the result of the breakdown of polyunsaturated fatty acids in fats?
What is the principle behind ohmic heating?
What is the principle behind ohmic heating?
What is the primary mechanism of water removal in osmotic drying?
What is the primary mechanism of water removal in osmotic drying?
What is the term for the process in which a solid changes directly to a vapor without passing through the liquid phase?
What is the term for the process in which a solid changes directly to a vapor without passing through the liquid phase?
What is the purpose of adding salt, sugar, spices, or nitrates in food preservation?
What is the purpose of adding salt, sugar, spices, or nitrates in food preservation?
In which region of the world is fermentation still a common method of food preservation?
In which region of the world is fermentation still a common method of food preservation?
What is the primary function of edible coatings in food preservation?
What is the primary function of edible coatings in food preservation?
What is the process of preserving food through the use of salt and drying?
What is the process of preserving food through the use of salt and drying?
What is the primary mechanism of pulsed light food preservation?
What is the primary mechanism of pulsed light food preservation?
What is the main purpose of irradiation in food preservation?
What is the main purpose of irradiation in food preservation?
What is the process of using ultrahigh pressures to inhibit the chemical processes of food deterioration?
What is the process of using ultrahigh pressures to inhibit the chemical processes of food deterioration?
What is the primary advantage of high-pressure processing of foods?
What is the primary advantage of high-pressure processing of foods?
What is the role of ozone in food preservation?
What is the role of ozone in food preservation?
What is the primary difference between pulsed light and irradiation in food preservation?
What is the primary difference between pulsed light and irradiation in food preservation?
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