Unexpected thermal destruction of dried, glass bead-immobilized microorganisms as a function of water activity.

  title={Unexpected thermal destruction of dried, glass bead-immobilized microorganisms as a function of water activity.},
  author={C{\'e}line Laroche and Patrick Gervais},
  journal={Applied and environmental microbiology},
  volume={69 5},
To help us understand the factors and mechanisms implicated in the death of microorganisms or their resistance to temperature in a low water activity environment, microorganisms were dried on the surface of glass beads before being subjected to high temperatures for a short period followed by rapid cooling. Two microorganisms were studied: the yeast Saccharomyces cerevisiae and the bacterium Lactobacillus plantarum. Experiments were carried out at 150, 200, and 250 degrees C, with four… CONTINUE READING

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Effect of pH modification and preservative action on the heat resistance of Escherichia coli O157:H7 in apple cider

  • L. L. Dock, J. D. Floros, R. H. Linton
  • J. Food Prot
  • 2000

General stress response: in search of a common denominator, p. 213–230

  • M. Siderius, W. H. Mager
  • 1997

Thermal inactivation kinetics of three vegetative bacteria as influenced by combined temperature and pH in a liquid medium

  • X. Chiruta
  • Trans. Inst. Chem. Eng. Part C 75:174–180
  • 1997

Use of a modified FIG. 2. Viabilities of L. plantarum (a and c) and S. cerevisiae (b and d) with heat treatments of 5 s (a and b) and 30 s (c and d). Temperatures: }, 150°C; ■, 200°C; Œ, 250°C

  • R. H. Linton, W. H. Carter, M. D. Pierson
  • 1996

Effect of the kinetics of temperature variation on Saccharomyces cerevisiae viability and permeability

  • P. Gervais, I. Martínez de Marañon
  • Biochim. Biophys
  • 1995

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