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Appl Environ Microbiol. 1978 September; 36(3): 403-407

Sensitization of Clostridium perfringens spores to heat by gamma radiation.

D E Gombas and R F Gomez

ABSTRACT

Spores of Clostridium perfringens, type A, were given separate or sequential treatments of gamma radiation (0 to 0.7 Mrad) and/or high temperature (93 to 103 degrees C). Prior heating, sufficient to inactivate 40 to 99% of the viable spores, had no effect on the subsequent radiation inactivation rate. Prior irradiation had a sensitizing effect on subsequently heated spores. The degree of sensitization to heat, as measured by thermal inactivation rate, increased with increased radiation pretreatment dose.

Appl Environ Microbiol. 1978 September; 36(3): 403-407






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