Principles behind Food Preservation

Question 1

What are the Principles behind Food Preservation?

*hint acronym RACE

Answer 1

R-Removal of Moisture
A-Addition of Chemicals
C- Control of Temperature
E- Exclusion of air

Question 2

What does the removal of moisture do?

Answer 2

• It is achieved using processes e.g: evaporation/ dehydration

-Used to slow down enzymatic or microbial activity

Question 3

What does the addition of chemicals do?

Answer 3

• In a logical sense can help extend shelf life of food products.

Question 4

What does the control of Temperature do?

Answer 4

-controls temp food so it does not reach the danger zone of 5-60 degrees celsius

-kelps destroy enzymes and microorganisms by its high temperatures

Question 5

What does the exclusion of air do?

Answer 5

• Destroys aerobe microbes ( organisms that grow w the presence of oxygen) as they cannot function without air.