fractional sterilization(redirected from discontinuous sterilization)
exposure to a temperature of 100°C (flowing steam) for a definite period, usually an hour, on each of several days; at each heating the developed bacteria are destroyed; spores, which are unaffected, germinate during the intervening periods and are subsequently destroyed.
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fractional sterilizationAn obsolete type of sterilisation described by J Tyndall (1820–1893) in which spore-forming bacteria in various stages of the cell cycle were destroyed by intermittent (e.g., one hour per day) steam sterilisation.
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Sterilization in which heating is done at intervals so that spores can develop into vegetative bacteria and be destroyed.Synonym: intermittent sterilization
See also: sterilization
Medical Dictionary, © 2009 Farlex and Partners
Tyndall,John, English physicist, 1820-1893.
Tyndall effect - Synonym(s): Tyndall phenomenon
Tyndall light - light that is reflected by gas- or liquid-suspended particles.
Tyndall phenomenon - the visibility of floating particles in gases or liquids when illuminated by a ray of sunlight and viewed at right angles to the illuminating ray. Synonym(s): Tyndall effect
tyndallization - exposure to a temperature of 100°C (flowing steam) for a definite period, usually an hour, on each of several days. Synonym(s): fractional sterilization
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