1 population size factors influencing effectiveness of

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Unformatted text preview: d growth of microbes Bacteriostatic, fungistatic, etc. Factors Influencing Effectiveness of Factors Influencing Effectiveness of Antimicrobial Treatments 1. Population size The more cells there are to kill, the longer it will take to reduce the population toward zero Endospores, mycolic acids Higher concentration = quicker death Some chemicals more effective at lower concentrations (need water for activity) 2. Presence of resistant structures 3. Concentration (chemical) or intensity (physical) 70% isopropyl better than 100% isopropyl Factors Influencing Effectiveness of Factors Influencing Effectiveness of Antimicrobial Treatments 4. Duration of exposure Longer exposure time = more deaths (approach sterilization) 5. Temperature of treatment Higher temperatures speed up reactions = quicker death 6. pH of sample Lower (acidic) pH environments = faster death Factors Influencing Effectiveness of Factors Inf...
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This note was uploaded on 03/24/2009 for the course MIBO 3500 taught by Professor Dustman during the Fall '09 term at University of Georgia Athens.

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