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49 Cards in this Set
- Front
- Back
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Sterilization
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Removal/destruction of all forms of microbial life including endospores and viruses (except prions)
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Disinfection
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Destruction of vegetative pathogens
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Antisepsis
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Destruction of vegetative pathogens on living tissue
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Degerming
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Removal of microbes from a limited area
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Sanitation
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Lower microbial counts on eating/drinking utensils to safe public health levels
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Bacteriostatic
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Prevents the growth of bacteria
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Bactericidal
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Kills bacteria
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Germicide
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Used in specific quantities and concentrations that target microscopic bacteria
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Bactericide
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Used to kill bacteria
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Fungicide
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Kills fungi
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Viricide
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Inactivates viruses
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pH affect on Microbial Growth
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The lower the pH typically the less likely microbes are able to grow in the environment
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Temperature affect on Microbial Growth
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The lower the initial temperature the slower microorganisms tend to grow
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Organic matters affect on microbial growth
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Can interfere with heat penetration and other chemical disinfectants
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Number of microbes affect on microbial growth
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The higher the initial population of a microbial the longer the time it will take to reduce its number by 90%
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Presence of biofilms affect on microbial growth
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Increase the number of organisms able to live exponentially as they protect the organisms living there
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Physiological states of the microbes affect on microbial growth
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If microbes are in the log phase (growth phase) then they are most susceptible to treatment
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Time of exposures affect on microbial growth
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The longer exposed to treatment the more effective treatment will be
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Physical vs. Chemical Agents
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Physical: heat, cold, pH, etc
Chemical: specific chemicals that affect the microbes growth |
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Moist heat
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Disinfectant
Bacteriocidal Sometimes kills endospores Physical Agent |
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Pasteurization
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Bacteriocidal
Disinfectant Physical Agent |
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Dry Heat
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Sterilizes
Bacteriocidal Physical Agent |
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Filtration
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Sterilizes
Bacteriostatic Physical Agent |
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Refridgeration
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Bacteriostatic
Physical Agent |
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Freezing
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Bacteriostatic
Physical Agent |
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Lyophilization (freeze-drying)
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Bacteriostatic
Physical Agent |
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High pressure
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Preservation
Bacteriostatic Physical Agent |
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Desiccation
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Bacteriostatic
Physical Agent |
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Osmotic Pressure
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Preservation
Bacteriostatic Physical Agent |
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Ionizing Radiation
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Sterilizes
Bactericidal Physical Agent |
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Nonionizing Radiation
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Bactericidal
Bateriostatic Physical Agent |
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Phenols
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Disinfectant
Chemical Agent |
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Phenolics
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Disinfectant with organic materials
Chemical Agent |
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Bisphenols
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Disinfectant
Antiseptic Chemical Agent |
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Biguanides
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Disinfectants
Antiseptic Chemical Agent |
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Halogens
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Cholorine: Disinfect
Iodine: Antiseptic Chemical Agent |
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Alcohols
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Disinfection
Degerming Antiseptic Chemical Agent |
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Heavy Metals and their compounds
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Disinfectant
Chemical Agent |
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Soaps and Detergents
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Degerming
Chemical Agent |
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Acid-anionic sanitizers
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Sanitizers in dairy and food processing
Antiseptic Chemical Agent |
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Quaternary ammonium compounds
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Antiseptic
Bactericidal Bacteriostatic Fungicidal Virucidal Chemical Agent |
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Organic Acids
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Preservation
Chemical Agent |
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Nitrates/nitrites
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Preservation
Bacteriostatic Chemical Agent |
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Aldehydes
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Sterilizer for medical equipment
Chemical Agent |
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Ehylene Oxide and other gaseous _____
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Sterilization
Chemical Agent |
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Plasma Sterilization
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Sterilization
Chemical Agent |
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Supercritical fluids
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Sterilization used in organic medical implants
Chemical Agent |
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Peroxygens and other forms of O
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Disinfectant
Chemical Agent |
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What 3 actions will microbial agents take against microbes?
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Alteration of membrane permeability
Damage to proteins Damage to nucleic acids |
