Assessing Virulence Factor Genes in Pig-Derived Escherichia coli from the Region of Vojvodina Treated with Postbiotic Substance and Herbal Essential Oils
Demonstrates that essential oils and postbiotic substances inhibit virulence in Escherichia coli, suggesting new prevention methods.
Key Points
The study aims to assess the effectiveness of essential oils and postbiotic substances in inhibiting virulence factors of pig-derived Escherichia coli.
Taxonomic identification of E. coli strains using MALDI-TOF mass spectrometry.
Assessment of virulence factor genes using PCR techniques.
Evaluation of biofilm formation on Congo red agar.
Measurement of susceptibility to herbal essential oils and postbiotic substance PS412.
14 out of 16 E. coli strains were securely identified.
62.5% of strains exhibited the fimA gene, while 87.5% showed the crl gene.
Five E. coli strains formed biofilm.
Strains were multi-resistant to antibiotics but susceptible to essential oils, with inhibition zones between 15 and 27 mm.
Strains also showed susceptibility to PS412 at an activity level of 6400 AU/mL.