Food Spoilage

Question 1

What do enzymes do?

Answer 1

Enzymes speed up the process of chemical reactions as they are a catalyst

Question 2

How can you prevent oxidisation?

Answer 2

Acidic juices, Air tight containers, Heat, Keeping out of light, Submerging in water

Question 3

How can you prevent oxidisation?

Answer 3

Acidic juices, Air tight containers, Heat, Keeping out of light, Submerging in water

Question 4

What things are needed for food spoilage to occur?

Answer 4

Time, Food, Moisture, Wrong temperatures

Question 5

What foods do yeast spoil?

Answer 5

Acidic, Sweet foods. They also release ethanol + C02

Question 6

What are moulds?

Answer 6

They are tiny fungi which produce thread-like filaments. These filaments help the mould to spread around the food, extracting nutrients.

Question 7

What are the ideal growth conditions for mould?

Answer 7

-Between 20-30 degrees
-Moisture
-Heat

Question 8

How can you slow mould growth?

Answer 8

-Putting foods in the freezer
-Keeping humidity levels down

Question 9

How is mould used in the food industry?

Answer 9

-Cheese e.g. Blue + Brie
-Sausage skins
-Soy sauce

Question 10

How is yeast used in the food industry?

Answer 10

-Beer
-Bread
-Wine
-Raising agents

Question 11

How is bacteria used in the food industry?

Answer 11

Starter cultures ( used on cheese and yogurt )