2. Materials and methods
2.1. Bacteria growth conditions L. reuteri INIA P579 was used for reuterinproduction.
L. monocytogenes strains INIA H66a and INIA 2530 isolated from industrial environment, L. monocytogenes CECT 5725 and Escher- ichia coli K12 CECT 443 were used as test organisms in this study. The strains weremaintained as stock culture at ?80?C inTrypticase Soy Yeast Extract Broth supplemented with 30% glycerol.