Bulletin of the National Research Centre

Table 1 Main constituents (%) of the essential oils isolated from leaves of Artemisia herba-alba and Laurus nobilis

From: Characterization and insecticidal activity of two natural formulation types against the scale insect (Parlatoria ziziphi) and their biochemical effects on Citrus aurantium

A. herba-alba			L. nobilis
Compound	Rt^a (min)	Percentage	Compound	Rt (min)	Percentage
Tricyclene	9.64	0.32	α-Pinene	11.07	4.74
α-Pinene	11.09	0.25	Camphene	13.06	0.23
Camphene	13.09	4.1	Sabinene	13.61	12.38
Sabinene	13.52	4.02	Myrcene	13.9	0.69
β-Pinene	13.7	0.3	α-Terpinene	14.26	0.28
β-Myrcene	13.99	0.56	p-Cymene	14.4	0.95
Carene	14.15	0.18	Limonene	14.5	0.9
α-Terpinene	14.28	0.75	Germacradienol	14.6	5.23
β-Phellandrene	14.37	0.47	1,8-Cineole	15.38	49.74
p-Cymene	14.51	1.52	γ-Terpinene	16.43	0.79
1,8-Cineole	15.4	8.9	Terpinolene	16.91	0.2
γ-Terpinene	16.46	0.77	Linalool	19.1	0.63
α-Thujone	17.59	7.85	Borneol	19.7	1.13
β-Thujone	17.94	12.83	α-Caryophyllene	21.71	0.97
Chrysanthenone	18.13	16.48	Terpinen-4-ol	24.81	1.01
Trans-Pinocarveol	18.89	0.61	α-Terpineol	25.66	3.41
Camphor	19.13	27.65	Bicyclogermacrene	27.08	0.23
Borneol	19.71	1.72	α-Terpinyl acetate	28.24	10.2
Pinocarvone	20.01	0.73	(-)-Spathulenol	29.39	1.4
Caryophyllene	21.76	0.21	Methyl eugenol	31.19	2.96
Terpinen-4-ol	24.82	0.61
α-Terpineol	25.66	0.25
cis-Chrysanthenyl acetate	26.25	0.94
Germacrene D	26.91	2.21
Trans-Nerolidol	27.64	0.44
Davanone	28.28	2.37
(-)-Spathulenol	29.38	0.97

^aThe retention time

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