TLE 10: 2nd Quarter, Lesson 1: Introduction To Food Preservation Flashcards
What is Food Preservation?
It is a process in which perishable food are prevented from getting spoilt.
It involved preventing the growth of bacteria, fungi, or other microorganisms.
Food Preservation
What is Rancidity?
A condition of unpleasant doors or flavors in food resulting from deterioration of fat or oil portion of a food.
The length of time a good product can be stored until degradation occurs.
Shelf life
What are the factors that affect the shelf life of food?
- Temperature
- Atmosphere
- Moisture
- Container
How can temperature affect the shelf life of food?
The best temperature for storage is a cool, dry place. Some food spoils because of the sudden change in temperature.
This is the factor where too much oxygen in food oxidizes the food causing rancidity.
Atmosphere
How does moisture affect the shelf life of food?
The changes in water content of food which results from contact with air or increase exposure in air that causes food to dry.
This is a factor where a properly packed food must have a hermetic (air tight) seal. Foods that are removed from its original container might start deteriorating.
Container
The changes that happens in food such as in color, taste, smell, and look which dignified if the food is still good for consumption or not.
Degradation
What is Autolysis?
The self-destruction of food.
When do fruits and vegetables undergo Autolysis?
When they are harvested.
When do animals undergo Autolysis?
When they are being slaughtered.
This means that the original nutritional value, texture, and flavor of the food are damaged.
Food Spoilage
What are the causes of food Spoilage?
Microorganisms
Bacteria, yeasts, or molds
Physical and chemical changes
These are very Ting organisms that penetrate the inner tissues of food through cuts and bruises caused by insects.
Microorganisms
What are bacteria, yeasts, or molds?
The main carriers of microbes that cause spoilage. They break down the complex organic components of food thus turning them into simpler compounds which causes its fermentation or molding.
The absorption of foreign orders, moisture loss or gain and changes in the temperature of food are also causes of spoilage.
Physical and Chemical changes
It is a term that refers to the quickness with
which food gets spoilt.
Perishability
What are the different types of food?
Perishable
Semi-Perishable
Non-Perishable
What are the different kinds of Perishable food?
Meat
Fruits and Vegetables
Seafood
What are semi-perishable foods?
Corn
Onion
Garlic
Boiled egg
What are non-perishable foods?
Grains
