Study on the application of an interspecific competition model for the prediction of microflora behaviour during the fermentation process of S. Angelo PGI salami

The authors carried out a study in order to apply an interspecific competition model to predict the microflora behaviour of S.Angelo IGP salami during the ripening. They consider 3 bacterial population (Lactic Acid Bacteria, Enterobacteria and Listeria monocytogenes – LAB, Ent and Lmo) using the observed curves obtained in a previous work as validation. The model applied setting to 0 all interaction terms does not fit the observed curves while the introduction of 3 interaction terms (βLmo/LAB = 0.65; βEnt/LAB = 0.4; βLmo/Ent = 0.18) produce a good agreement with the observed behaviour of all populations.r lag-time of the spoilage flora characterised by a higher prevalence of Enterobacteria.