Identification of Volatile Compounds and Insecticidal Activity of Essential Oils from Origanum compactum Benth. and Rosmarinus officinalis L. against Callosobruchus maculatus (Fab.)

Table 2

Volatile compounds of EOR identified by GC-MS.

Peak	RT	Compound	Chemical formula	Chemical class	RI		Area (%)
					Cal	Lit
1	4.16	Camphene	C10H16	MO.H	1085	1068	4.10
2	4.47	Cis-Ocimene	C10H16	MO.H	1037	1037	1.30
3	4.94	o-Cymene	C10H14	MO.H	1024	1024	1.07
4	4.99	Limonene	C10H16	MO.H	1028	1029	0.91
5	5.03	1,8-Cineol	C10H18O	MO.O	1186	1186	62.35
6	6.17	Camphor	C10H16O	MO.O	1146	1146	23.14
7	6.38	Borneol	C10H18O	MO.O	1169	1169	5.51
8	14.56	Santolinyl acetate	C12H20O2	O	1172	1174	0.80
9	16.46	Butanoic acid	C11H22O2	O	1196	1197	0.72
Monoterpene hydrate (MO.H)							7.38
Monoterpene oxygenated (MO.O)							91
Sesquiterpenes hydrate (ST.H)							0
Sesquiterpenes oxygenated (ST.O)							0
Others (O)							1.52
Total identified (%)							99.90

RI, retention indices; RT, retention time in minutes.