Food and industrial

Question 1

what should you do store and perverse food?

Answer 1

microbial growth must be inhibited

Question 2

what is food to an micro-organism?

Answer 2

a nutrient source and biodegradation

** they need optimal conditions

Question 3

what happens if the Aw is closer to 1.0?

Answer 3

the more perishable

Question 4

metabolites and waste products?

Answer 4

contribute to the spoilage process

Question 5

microbial growth and enzyme production

Answer 5

result in food spoilage

Question 6

what is botulism?

Answer 6

it is food poisoning by bacteria in canned products

Question 7

what are some parameters you would want to control?

Answer 7

1. pH
2. Nutrients
3. Water activity
4. Presence of oxygen
5. Osmotic pressure
6. temperature

Question 8

the higher the temp?

Answer 8

more food spoilage

Question 9

what is lyophilization?

Answer 9

freeze dried, lowers the Aw so it can be preserved for longer

Question 10

what is pickling?

Answer 10

it is adding vinegar to prevent microbial growth, makes it more acidic

Question 11

canning

Answer 11

heat sterilization kills all of the living organisms