Table 4.

Inhibition (%) of the production of the Pseudomonas aeruginosa virulence factor pyocyanin.

Sample	P. aeruginosa ATCC 27853	P. aeruginosa HT5
EOP 4 mg/mL	62.30 ± 2.05	68.02 ± 1.03
EOP 0.1 mg/mL	37.12 ± 3.00	40.07 ± 2.14
EOPD 4 mg/mL	65.21 ± 1.03	69.19 ± 0.00
EOPD 0.1 mg mL	41.42 ± 2.11	43.11 ± 4.08
Limonene 4 mg/mL	57.45 ± 0.05	58.23 ± 3.01
Limonene 0.1 mg/mL	30.00 ± 1.10	23.44 ± 3.23

EOP: Essential oil obtained by cold-pressed method; EOPD: essential oil obtained by cold-pressed method followed by steam distillation. Data are presented as means ± SEMs (n = 3) of three independent experiments. All experiments show significant differences compared to respective controls (p < 0.05).