Fig 1.
Representative GC-FID chromatogram of [A] (E)-cinnamaldehyde standard (1 mg/ml) and [B] cinnamon essential oil (1 mg/ml).
Fig 2.
Representative GC-FID chromatogram of [A] 1,8 cineole standard (1 mg/ml) and [B] eucalyptus essential oil (1 mg/ml).
Fig 3.
Inhibitory zones induced by vapor-phase of 100 μL [A] Dimethyl sulfoxide, [B] (E)-cinnamaldehyde 100% (equal to 1316 μL/ L) and [C] Cinnamomum cassia whole oil 100% (equal to 1316 μL/ L) on Bacillus subtilis ATCC 6633. B. sub, Bacillus subtilis ATCC 6633.
Table 1.
Inhibition zones (mm) induced by vapor-phase of plant essential oils and isolated compounds on bacteria.
Table 2.
Minimum inhibition concentration (percentage volume: % v/v) of plant essential oils and isolated compounds on bacteria.
Fig 4.
Inhibitory zones induced by liquid-phase of [A] Eucalyptus globulus whole essential oil and [B] 1,8 cineole on Staphylococcus aureus ATCC 25923. S. aureus, Staphylococcus aureus ATCC 25923.
Table 3.
Inhibition zones (mm) induced by liquid-phase of plant essential oils and isolated compounds on bacteria.