In this research, mint and basil essential oils at concentrations of 0.01 ml/L, 0.032 ml/L or 0.08 ml/L were
used for disinfection treatments of fresh-cut lettuce and purslane samples inoculated with Salmonella
typhimurium or Escherichia coli 0157:H7. Disinfection treatment time was applied as 10 min (short) or
15 min (long). Disinfected samples were packaged aerobically and stored at refrigerator þ4 C for 7 days.
It was observed that mint and basil essential oils showed antimicrobial effect on the survival of E. coli
O157:H7 and S. typhimurium inoculated into lettuce and purslane samples during refrigerated storage.
Mint essential oil showed higher antimicrobial effect on pathogens when compared to basil essential oil.
Mint and basil essential oils at concentration of 0.08 ml/L were the most effective antimicrobial treatment
against pathogens in two different vegetable. S. typhimurium was more resistant against basil oil in
lettuce samples when compared to its resistance against basil oil in purslane samples, whereas E. coli
O157:H7 was more resistant to mint oil in purslane samples when compared to its resistance against
mint oil in lettuce samples