Chemical and Antibacterial Polymorphism of Juniperus oxycedrus ssp. oxycedrus and Juniperus oxycedrus ssp. macrocarpa (Cupressaceae) Leaf Essential Oils from Tunisia

Table 3

Antimicrobial activity of the investigated essential oils in agar diffusion test* (zone diameter are expressed in mm).

Species	Site	Escherichia coli	Salmonella enteridis	Salmonella typhimurium	Staphylococcus aureus
J. oxycedrus ssp. oxycedrus	Kb	0	6±4	—	13.5±00
	SA	0	6±1	—	13.5±00
	Dk	0	6.5±00	—	13.5±00
J. oxycedrus ssp. macrocarpa	Tab	0	6±1	8±1	13±1
	OB	0	6±2	8±2	13±1
Gentamicin		20	13	15	25

∗Values are means ± SD of triplicate determinations.
Dk: Dkhila, Tab: Tabarka, SA: Sidi Ameur, Kb: Kbouche, and OB: Oued El Bir.