Inverse Correlation between Extracellular DNase Activity and Biofilm Formation among Chicken-Derived Strains.

and are important foodborne pathogenic bacteria, particularly in poultry meat. In this study, the presence of extracellular DNase activity was investigated for biofilm-deficient strains versus biofilm-forming strains isolated from chickens, to understand the relationship between extracellular DNase activity and biofilm formation. A biofilm-forming reference strain, NCTC11168, was co-incubated with biofilm non-forming strains isolated from raw chickens or their supernatants.