AI Article Synopsis
- The study assessed the effectiveness of three commercial organic acid water additives against Salmonella enterica isolates and biofilms of Salmonella Typhimurium.
- It was found that products A and C significantly reduced viable cells in both three- and five-day-old biofilms in a dose- and time-dependent manner.
- However, none of the products were able to completely eliminate biofilm cells, highlighting the importance of product composition, exposure time, and concentration in their antibacterial efficacy.
Article Abstract
This study evaluated the antibacterial activity of commercially available organic acid water additives against Salmonella enterica isolates and examined the susceptibility of Salmonella Typhimurium biofilms to these products. Three commercial organic acid products (A, B, and C) were evaluated for minimum inhibitory and bactericidal concentrations against isolates of S. enterica serovars. Three- and five-day-old S. Typhimurium biofilms were formed at 22 ± 2°C using an MBEC™ assay system and exposed for 30 min or 90 min at 0.2% and 0.4% concentrations. No significant difference among serovars for inhibitory and bactericidal concentrations was detected. Two products (A and C) significantly reduced viable cells from biofilms of both ages in a dose- and time-dependent manner. Increased biofilm age did not enhance resistance towards organic acid treatments. None of the products completely eliminated biofilm cells at any concentration or exposure time. Product composition, exposure time, and concentration of organic acid products were important factors in reducing viable biofilm cells. This study has expanded our understanding about the susceptibility of Salmonella biofilms to commercial organic acid products. These findings have implications in the usage, development, and optimization of organic acid products.
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| http://dx.doi.org/10.1080/03079457.2017.1394979 | DOI Listing |
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