Cinnamomum zeylanicum, Origanum vulgare, and Curcuma longa Essential Oils: Chemical Composition, Antimicrobial and Antileishmanial Activity
Table 2
Diameters of inhibition zones and minimum inhibitory concentration of different bacteria culture after 24 hours of treatment with Cinnamomum zeylanicum, Curcuma longa, or Origanum vulgare essential oil.
Compounds
Bacteria strain
Escherichia coli
Staphylococcus aureus
Pseudomonas aeruginosa
Inhibition zones (mm)
Cinnamomum zeylanicum
15.00 ± 1.000
14.67 ± 0.577
10.33 ± 0.577
Curcuma longa
12.67 ± 0.577
15.33 ± 0.577
9.66 ± 0.577
Origanum vulgare
14.67 ± 0.577
15.67 ± 0.577
12.00 ± 1.000
gentamycin
14.33 ± 0.577
20.67 ± 0.577
16.67 ± 0.577
MIC (μg/mL)
Cinnamomum zeylanicum
133.3 ± 14.43
216.7 ± 28.87
550.0 ± 0.00
Curcuma longa
216.7 ± 28.87
83.3 ± 14.43
383.3 ± 57.74
Origanum vulgare
266.7 ± 28.87
166.7 ± 28.87
483.3 ± 28.87
amoxicillin
16.0 ± 0.00
8.0 ± 0.00
n.d.
gentamycin
n.d.
2.0 ± 0.00
n.d.
polymyxin B
n.d.
n.d.
16.0 ± 0.00
To determine the inhibition zones, 75μL of each essential oil was used in the disk diffusion test. n.d.: not determined. Data represents mean ± standard deviation of experiment realized in triplicate.
