FN43 - 9.01 Food Preservation

What is an advantage of refrigeration?

• cost of equipment

• destroys pathogens

• improves flavor

• slows enzyme activity

Which is a thermal preservation method?

• dehydration

• irradiation

• Ohmic processing

• Ozonation

Which thermal processing method results in a short shelf life?

• blanching

• commercial sterilization

• freezing

• pasteurization

Which processing method is classified as irradiation?

• alternating electric currents

• high pressure

• ionizing with gamma rays

• retort canning

Which thermal processing method results in a long shelf life?

• blanching

• concentration

• dehydration

• pasteurization

Which processing method is classified as dehydration?

• filtration

• hydrostatic cooker

• open kettle

• vacuum

Which example is a nonthermal preservation method?

• dehydration

• freezing

• ozonation

• refrigeration

What is the advantage of freezing a food over refrigerating a food?

• Foods keep fresh for days.

• No special packaging is required.

• It is the gentlest method.

• Foods keep up to one year.

Which processing method is classified as commercial sterilization?

• filtration

• hydrostatic cooker

• open kettle

• vacuum

Which processing method is classified as ohmic processing?

• alternating electric currents

• high pressure

• retort canning

• vacuum