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Validation of an overall model describing the effect of three environmental factors on the apparent D-value of Bacillus cereus spores

Abstract : Several factorial models extending the famous Bigelow model to describe the influence of the heating and recovery pH and aw conditions on bacterial heat resistance have been developed. These models can be associated in an overall multifactorial model describing the influences of heating and recovery conditions on D values. For Bacillus cereus strain ADQP 407 the mo D el parameters characterising the environmental factor influences (pH, Temperature, aw) were evaluated. Determination of bacterial heat resistance in cream chocolate have been realised to validate these parameter values and to evaluate the level of the influence of food texture or different compounds not taken account of in the model.
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https://hal.univ-brest.fr/hal-00654564
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Ivan Leguérinel, Isabelle Spegagne, Olivier Couvert, Stéphane Gaillard, Pierre Mafart. Validation of an overall model describing the effect of three environmental factors on the apparent D-value of Bacillus cereus spores. International Journal of Food Microbiology, Elsevier, 2004, pp.1-7. ⟨hal-00654564⟩

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