Table 2.

Minimal inhibitory concentration (MIC) (mg mL⁻¹) and zones of growth inhibition (mm) of garlic, cinnamon, and onion essential oils on L. monocytogenes. Zones of growth inhibition values are represented as mean ± standard deviation (including the disc diameter, 6 mm).

Essential Oil	MIC	Inhibition Zone
Garlic	0.100	31.0 ± 1.7 b
Cinnamon	0.100	12.3 ± 0.5 a
Onion	0.025	37.8 ± 0.4 c

^a–c Different superscript letters indicate significant differences (p < 0.05).