COST ACTION 920

Inventory of QMRA Studies in Europe

Pathogen

Salmonella Enteritidis

Country or region

Belgium

Transmission route

 From

 Farm

To

 Consumption

Specific product(s)

Eggs and egg products

End-point(s)

Prevalence and concentration of S. Enteritidis in eggs and egg products. Identification of critical points and assessment of possible preventative actions.

Bibliographic reference

Grijspeerdt K. (2001). Modelling the penetration and growth of bacteria in eggs. Food Control. 12, 7-11.

Abstract

A model for the penetration of bacteria in eggs has been developed. The model is based on simultaneous transport and growth in 3 basic zones of the egg: the egg yolk, the albumen and the eggshell. Transport is described by an effective diffusivity mechanism, combined with a first order linear movement for motile bacteria. Bacterial growth is modelled according to the Baranyi model. Approximate parameter values are obtained by comparing model output with literature data for Salmonella Enteritidis. The model output is illustrated by simulations showing the influence of the external shell concentration on the breakthrough through the eggshell.

Status

Availability

Institute

Contact person

 K.Grijspeerdt@clo.fgov.be

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