18 Questions
What is the main temperature range for chilling food?
0-15oC
How is the killing principle related to food preservation?
By preventing microbial contamination
Which method employs heat to achieve the killing principle?
Heat treatment
How do radiations kill microorganisms in food?
By creating toxic reactive compounds
What is the purpose of blanching in food preservation?
To prevent oxidation
Why is food preservation important?
To increase the self-life of foods
What is the principle behind food preservation by inhibition methods?
Reduction of water activity
How can food be preserved by lowering pH?
Fermentation and addition of acids
Which method is used to achieve lower water activity in food preservation?
Addition of high sugar content
How does fermentation contribute to food preservation?
Breaks down carbohydrates into alcohol or lactic acid
What effect does smoking have on food preservation?
Has a drying and preservative effect
What happens to food preserved by inhibition methods if the inhibiting influence is removed?
Organisms present will grow and cause spoilage
What is the main purpose of food preservation?
To prevent foods from spoiling
Which of the following is NOT a benefit of food preservation?
Decreasing the nutritive values of food
What is the purpose of using physical and/or chemical agents in food preservation?
To prevent microbial spoilage
Which principle of food preservation involves preventing or delaying the action of microorganisms?
Inhibition principle
How does food preservation contribute to making food products last for a long period of time?
By preventing spoilage and maintaining quality
In food preservation, what is the primary objective of destroying organisms or delaying their growth in food?
To maintain the original quality of food
Test your knowledge on the basics of food preservation with this quiz covering topics such as food spoilage, importance of food preservation, benefits to stakeholders, and preserved foods in the market. Prepared by Ms.V.T Anushaan, this quiz is ideal for students of Food Technology at Rajarata University of Sri Lanka.
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