Research Information System
Türk Tarım - Gıda Bilim ve Teknoloji dergisi, vol.4, no.11, pp.968-972, 2016 (Peer-Reviewed Journal)
The purpose of this study was to determine the antibacterial activity of plant derived compounds and essential oils of Corymbia citriodoraagainst selected Gram negative and Grampositivefoodbornepathogensinbrothdilutionassay.Thecombinationof compounds (cineole, terpinen-4-ol and ?-terpineol; CT?T) were further tested at three different concentrations (0.2, 0.4 and 0.8%) for the killing effect against E. coliO157:H7 and L.monocytogenesin milk including whole fat and skim fat. CT?T showed antimicrobial activity against all bacteria tested at minimum inhibition concentrations (MICs) from 0.125% to 1% in broth dilution assay. Linalool was also found to be antimicrobial at MICs between 0.25% and 2%, but not for Enterococcus casseliflavus. Further study carried out in milk showed that CT?T at concentrations of 0.4% and 0.8% significantly reduced the population of E. coliO157:H7 under detection limit in skim milk, whereas it was only effective at 0.8% in whole fat milk. CT?T, on the other hand, shown to be less active towardsL. monocytogenesas only significant effect was observed at 0.8% in skim milk. Taken together results of the present study indicate that plant derived compounds could be valuable alternatives to inactivatefoodborne pathogens in milk.