The Control of Microbial Growth Chapter 7

Student required vocabulary

Nosocomial

Sterilization

Disinfection & antiseptic

Degerming

Sanitization

-cide

-stat or -stasis

Sepsis

Asepsis

Lecture outline

  1. Rate of Death
    1. Factors
  2. Physical Methods of Control
    1. Heat
      1. moist heat
        1. boiling
        2. autoclave
        3. pasteurization
          1. Milk standards
            1. Classic, HTST, UHT
      2. dry heat
    2. Filtration
    3. Low Temp
    4. Dessication
    5. Osmotic Pressure
    6. Radiation
    1. Chemical Methods of Control
    1. Evaluation
      1. use-dilution test
      2. disk-diffusion method
        1. zone if inhibition
    2. Types
      1. phenol and phenolics
      2. bisphenols
      3. biguanides
      4. halogens
        1. tincture
        2. iodophor
        3. chlorine
      5. alcohols
      6. Heavy metals
        1. oligodynamic action
      7. Surfactants
        1. soaps and detergents
        2. acid-anionic sanitizers -
        3. Quats
      8. organic acids
      9. aldehydes
      10. gaseous sterilants
      11. oxidizing agents
        1. peroxygens