Ps. Fernandez et al., PREDICTIVE MODEL OF THE EFFECT OF CO2, PH, TEMPERATURE AND NACL ON THE GROWTH OF LISTERIA-MONOCYTOGENES, International journal of food microbiology, 37(1), 1997, pp. 37-45
The growth responses of L. monocytogenes as affected by CO2 concentrat
ion (0-100% v/v, balance nitrogen), NaCl concentration (0.5-8.0% w/v),
pH (4.5-7.0) and temperature (4-20 degrees C) were studied in laborat
ory medium. Growth curves were fitted using the model of Baranyi and R
oberts, and specific growth rates derived from the curve fit were mode
lled. Predictions for specific growth rate, doubling time and time to
a 1000-fold increase could be made for any combination of conditions w
ithin the matrix. Predictions of growth from the model were compared w
ith published data and this showed the model to be suitable far predic
ting growth of L. monocytogenes in a range of foods packaged under a m
odified atmosphere. (C) 1997 Elsevier Science B.V.