Table 2.

Percentage chemical composition of the essential oil of Mediterranean cypress Cupressus sempervirens L.

Peak no	Compound a	KI b	Area c (%)
1	Tricyclene	921	0.3
2	α-Thujene	922	1.4
3	α-Pinene	937	48.6
4	Camphene	948	0.5
5	Sabinene	974	2.0
6	β-Pinene	980	2.5
7	Myrcene	998	4.1
8	δ-3-carene	1012	22.1
9	p-Cymene	1021	0.2
10	Limonene	1024	4.6
11	γ -terpinene	1044	0.9
12	α-terpinolene	1064	4.5
13	Camphor	1104	0.1
14	Bronyl acetate	1289	0.2
15	Carvacrol	1304	0.1
16	β-Caryophyllene	1417	0.1
17	α-humulene	1559	0.3
18	Germacrene-D	1485	1.6
19	δ-cadinene	1527	0.5
20	α-cedrol	1610	3.5
Total			98.1
Oil yield (%) (v/w)			0.87

^aComponents were identified on KI and GC–MS (gas chromatograph coupled with mass spectrometry) and listed according to their elution on HP-5 MS capillary column (30 m).

^bKI: Kovats indices on HP-5 MS capillary column in reference to C9-C28 n-alkanes [12].

^cThe 20 constituents identified represent 98.1% of total area.