Please match the numbers to the letters.
1. Gram-negative bacteria
2. Chlorine
3. Ozone
4. Chemical that preserves food
5. Sterilizing agent
6. Preserve food by slowing the metabolic processes of foodborne microbes
A. Freezing
B. Disinfection of water
C. Oxidizing agents
D. Ethylene oxide
E. Sodium nitrite
F. Most resistant to chemical biocides
