What are the effects of low temperature on microbial growth

Reference no: EM133224531

Assignment:

1. For the following, can they be used to sterilize or disinfect?

. Boiling -

. Pasteurization -

. Autoclaves-

2) What are the effects of low temperature (ex. refrigerators and freezers), desiccation (ex. meat jerky), and increased osmotic pressure (ex. jellies and jams) on microbial growth? Are they microbiostatic or microbiocidal?

3) List ONE chemical agents that can be used as antiseptic

4) For 3 of the following categories of chemical agents, give one example of each

Alcohols

Peroxygens

5 ) Put in order from most resistant to most susceptible to chemical biocides the following list of microbes

1. Gram positive bacteria

2. Gram negative bacteria

3. Mycobacterium

4. Endospores

5. Enveloped viruses

6. Non-enveloped viruses

7. Fungi

8. Fungal spores

9. Protozoal cysts

10. Protozoa

11. Prions

Reference no: EM133224531

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