Influence of recovery temperature on heat resistance of Bacillus stearothermophilus spores

Authors

  • Isaac González Martínez
  • Roberto Martín Sarmiento
  • Mercedes López Fernández
  • Ana Bernardo Álvarez
  • Josefa González Prieto

DOI:

https://doi.org/10.18002/analesdeveterinaria.v37.7920

Keywords:

Bacillus stearothermophilus, heat resistance, termorresistencia

Abstract

The effects of recovery temperature (40-650 C) on the apparent behaviour of heattreated spores of Bacillus stearothermophilus were studied using as plating media nutrient agar (NA), dextrose triptone agar (DTA) and antibiotic assay medium (A-AM). Colony counts increased with temperature from 45 to 60o C. DT values obtained at 50-600 C were slightly higher than those at 650 C and 40-450 C. z values were not modified by incubation temperatures.

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Published

1991-01-02

Issue

Section

Research papers