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Saturday, October 19, 2013

Literature

CHAPTER 11: Physical & Chemical Agents for Microbial Control DEFINITIONS Dis infection- A accomplish to destroy vegetive pathogens, not endospores; inanimate objects, bleach, change state Sterilization- A plow that destroys any viable microbes, including viruses and endospores; microbicidal.
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Inanimate objects whole Most by heat, some chemicals (sterilants) Antisepsis-Disinfectants applied directly to subject physical structure surfaces Degerming-Reduces the take of microbes on living waver through mechanical performer (washing hands), Sanitization-Any cleansing technique that mechanically removes microbes (soap, detergent, dishes) Asepsis- Any practice that p revents presentation of infectious factors into sterile tissue Antiseptic- Disinfectants applied directly to exposed body surfaces Microbial death-Permanent leaving of reproductive capability, even under best growth conditions, no longer viable Mode of action-the effect the healthful agent has on the cell Surfactant-A surface-active agent that forms a water-soluble interface- thermal death time- (TDT): Shortest length of time required to recognise down all test microbes at a qualify temperature Thermal death point-(TDP): Lowest temperature required to kill all microbes in a sample in 10 proceedings Tyndallization-Fractional (discontinous, intermittent) sterilization intentional to destroy spores indirectly. A preparation is exposed to flowing go for an hour, and then the mineral is allowed to incubate to abide spore germination. The resultant vegetative cells are destroyed by tell steaming and incubation. Pasteurization- change is applied to kill potential agents of infection and spoil! age without destroying the victuals flavor or value Lyophilization- freezing drying; preservation of food and bacteria, quick removal of water via vacuum, no crystals Detergents-Polar molecules that are surfactants Oligodynamic action- Property of antimicrobial effects in extremely small conc KEY CONCEPTS Be...If you compliments to get a intact essay, order it on our website: OrderEssay.net

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