Interactions of Ziziphora clinopodioides and Mentha spicata essential oils with chitosan and ciprofloxacin against common food-related pathogens

摘要: Abstract The aim of the present study was to evaluate interactions Ziziphora clinopodioides and Mentha spicata essential oils with chitosan ciprofloxacin against common food-related pathogens ( Staphylococcus aureus , Bacillus subtilis cereus Listeria monocytogenes Salmonella typhimurium Escherichia coli O157:H7). chemical compositions were identified by gas chromatography coupled mass spectrometer detector (GC–MS). checkerboard method used examine antibacterial activities combinations oils, means fractional inhibitory concentration indices (FICI). Carvacrol (65.22%), thymol (19.51%), p- cymene (4.86%) ɣ -terpinene (4.63%) main components Z . oil. most abundant constituents M oil carvone (78.76%), limonene (11.50%) β -bourbonene (11.23%). Based on an overall consideration activities, synergetic found in majority tested microorganisms. No indifference antagonism activity observed for any designed. According results study, combination could be considered as practical potential strong antimicrobials food products.