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Table 2 Efficacy of Enteromorpha linza essential oil (EEO) against four strains of the two Gram negative foodborne pathogens, E. coli and S. Typhimurium

From: Antibacterial mechanism of the action of Enteromorpha linza L. essential oil against Escherichia coli and Salmonella Typhimurium

Foodborne bacterial pathogen Zone of inhibition (mm)
EEO# Rifampicin##
E. coli ATCC 43889 13.33 ± 0.58a 32.33 ± 1.52a
E. coli ATCC 43890 10.00 ± 0.00b 32.66 ± 0.57a
S. Typhimurium ATCC 19586 10.66 ± 1.15ab 21.50 ± 4.94b
S. Typhimurium ATCC 43174 10.66 ± 0.57ab 31.66 ± 2.08a
  1. Values are expressed as the mean ± standard deviation. Values with different superscript letters in the same column are significantly different at P < 0.05
  2. #EEO at 25 mg/disc; ##Rifampicin as a standard antibiotic at 20 μg/disc