Table 1.

Main components of the essential oil (%).

Components	RI	T. vulgaris	C. aurantium	C. sempervirens	E. globulus	C. limon	F. vulgare
α-Pinene	930			49
δ-3-Carene	1000			18
p-Cymene	1003	24
1,8-Cineole	1005				38
Limonene	1009			32	55	99
Linalool	1074		59
Borneol	1134	16
Linalyl acetate	1245		23
trans-Anethole	1254						75
Thymol	1275	12
Carvacrol	1286	16

RI: Retention Index relative to C₉–C₂₁ n-alkanes on the DB1 column. Empty spaces may means absence of the compounds or with concentrations <10%.