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Radiation Resistance of Spores of Clostridium Species In Aqueous Suspension
Author(s) -
ROBERTS T. A.,
INGRAM M.
Publication year - 1965
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1965.tb01859.x
Subject(s) - d value , clostridium sporogenes , clostridia , clostridium butyricum , spore , chemistry , clostridium , aqueous solution , nuclear chemistry , microbiology and biotechnology , food science , biology , bacteria , organic chemistry , fermentation , genetics
SUMMARY Data are presented enabling survivor curves under gamma rays to be constructed for un‐heated spores of the following Clostridia: Cl. aerofoetidum; Cl. bifermentans; Cl. botulinum types A, B, C, D, E, and F; Cl. butyricum; Cl. caloritolerans; Cl. chauvoei; Cl. histolyticum; Cl. fallax; Cl. oedematiens types A, B, and C; Cl. septicum; Cl. sordellii; Cl. sphenoides; Cl. sporogenes; Cl. subterminale; Cl. tertium; Cl. tetanomorphum; Cl. welchii types A, B, C, E, and F. After irradiation at 18–23°C, curves comprised a “shoulder” extending to about 0.25–0.35 Mrad, followed by an exponential kill over 6–8 log cycles with a decimal reduction value from 0.08 to 0.25 Mrad.