Novel methods of food preservation in meats

Question 1

Define ionizing radiation

Answer 1

Radiation with enough energy to remove tightly bound electrons from the orbit of an atom

Question 2

How does ionizing radiation inactivate organisms?

Answer 2

Interacts with water content to create free radicals, Leading to destruction of DNA

Question 3

How does cobalt radiation work?

Answer 3

Cobalt rods are placed into a container which will emit radiation for 20cm

Question 4

What is the main advantage of an Xray

Answer 4

It can penetrate multiple boxes of food at once

Question 5

What is a Gray?

Answer 5

Radiation dose equal to one joule of energy absorbed per kg of food

Question 6

What does a low does of 1kGY help prevent?

Answer 6

Sprouting of buds
fruit ripening

Question 7

What does a medium dose of 10kGY help prevent?

Answer 7

Spoilage microbes and ellimination of pathogenic organisms

Question 8

What is the major disadvantage of high pressure processing

Answer 8

Bacterial spores are still resistant