Principles of Food Sciences: Food Preservation Quiz

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What is the aim of food preservation?

The aim of preservation is to prevent food spoilage as a result of the growth of micro-organisms and breakdown of food by enzymes.

List three factors that promote enzymes and microbial activity in food.

Temperature, oxygen, and time promote enzymes and microbial activity.

What are the general principles of food preservation?

To destroy or inactivate micro-organisms, to destroy or inactivate enzyme activities, to prevent the re-entry of new microbes by sealing food, and to maintain the nutritional value, color, and texture.

Name three reasons why we preserve foods.

Extend shelf-life, keep food safe and prevent spoilage, save money Signup and view all the answers

List two different methods of food preservation.

Salting and smoking Signup and view all the answers

What are the factors that promote enzymes and microbial activity in food?

Temperature, oxygen, food, time, moisture, pH level Signup and view all the answers

Why do we preserve foods?

To extend shelf-life, keep food safe, save money, reduce wastage, make food available out of season, enable easier transportation and storage, and add variety to meals. Signup and view all the answers

What is the aim of food preservation?

To keep food safe, retain quality, prevent decomposition, and store it in a fit condition for future use. Signup and view all the answers

What are the general principles of food preservation?

Destroy or inactivate micro-organisms, destroy or inactivate enzymes activities, prevent the re-entry of new microbes by sealing food, maintain nutritional value, color, and texture, and prevent/removal of insects, worms, and rats. Signup and view all the answers

How can insects, worms, and rats be prevented or removed in food preservation?

By storing foods in dry, air-tight containers. Signup and view all the answers

Food Preservation Aim

Prevent food spoilage from microbes and enzymes.

Factors for Microbe/Enzyme Activity

Temperature, oxygen, time, moisture, food, pH.

General Preservation Principles

Kill microbes, enzymes, prevent re-entry, maintain quality.

Food Preservation Reasons

Extend shelf life, keep food safe, save money, reduce waste, availability year-round, easier to transport.