Compare and contrast desiccation and lyophilization.

In practical terms in everyday use, which of the following statements provides the definition of sterilization?

a. Sterilization eliminates all organisms and viruses.

b. Sterilization eliminates harmful microorganisms and viruses.

c. Sterilization eliminates prions.

d. Sterilization eliminates hyperthermophiles.

Describe five physical methods of microbial control.

What is the difference between thermal death point and thermal death time?

Defend the following statement: “Pasteurization is not sterilization.”

Hyperthermophilic prokaryotes may remain viable in canned goods after commercial sterilization. Why is this situation not dangerous to consumers?

What are some advantages and disadvantages of using ionizing radiation to sterilize food?

How can campers effectively treat stream water to remove pathogenic protozoa, bacteria, and viruses?

Lyophilization in food preservation is by ________.

a. cell lysis

b. gamma radiation

c. rapid heating

d. freeze-drying