1. Name four different types of chemical food preservatives.

2. Name four different types of chemical food preservatives.
Nitrates and Nitrites
Organic acids (lactic, sorbic, propionic)
Nicin (bacteriocin – type of protein)
Sulfur dioxide

3. Which of the following are halogens?
Mercury
Gluteraldehyde
Silver
Ethylene oxide
Chlorine
Iodine

4. Halogens include:
Chlorine
Iodine

5. All of the following are peroxygens EXCEPT:
Ozone
Silver nitrate
Hydrogen peroxide

6. Silver is not a peroxygen, it is a heavy metal

7. What are tinctures?

8. What are tinctures?
A tincture is a solution that contains alcohol as the solvent

9. What chemical agents can be used effectively as sterilizing agents?

10. What chemical agents can be used effectively as sterilizing agents?
Aldehydes (2% glutaraldehyde)
Ethylene oxide (a gaseous chemosterilizer)
Most do not sterilize

11. What physical methods are effective at sterilization?

12. What physical methods are effective at sterilization?
Autoclaving
Direct flaming
Incineration
Hot air sterilization
Filtration
Ionizing radiation
Non-ionizing radiation for surfaces
SOME types of pasteurization (UHT)

13. Triclosan and Hexachlorophene are both examples of:

14. Triclosan and Hexachlorophene are both examples of bisphenols:

15. What type of chemical antimicrobial is found in most hand sanitizers?

16. What type of chemical antimicrobial is found in most hand sanitizers?
alcohols