Table 1.

Composition of essential oil extracted from leaves of Salvia officinalis L. by hydrodistillation

Volatile compound† and chemical class	Retention time (min)	RI‡	Percentage of total EO§	Formula
α-Pinene	4.42	938	1.15 ± 0.1	C10H16
Camphene	4.64	954	2.58 ± 0.17	C10H16
β-Pinene	5.04	980	2.06 ± 0.05	C10H16
Myrcene	5.18	994	1.26 ± 0.11	C10H16
α-Terpinene	5.59	1,018	0.32 ± 0.03	C10H16
p-Cymene	5.73	1,026	0.36 ± 0.02	C10H14
γ-Terpinene	6.21	1,062	0.59 ± 0.05	C10H16
α-Terpinolene	6.66	1,090	0.53 ± 0.04	C10H16
Monoterpene hydrocarbons			8.85
1,8-Cineole	5.86	1,035	15.0 ± 0.51	C10H18O
α-Thujone	7.02	1,109	14.9 ± 0.35	C10H16O
β-Thujone	7.15	1,120	5.7 ± 0.27	C10H16O
Camphor	7.64	1,148	20.3 ± 0.91	C10H16O
Pinocamphone	7.80	1,161	0.38 ± 0.03	C10H16O
Borneol	7.89	1,168	2.16 ± 0.14	C10H18O
α-Terpineol	8.03	1,176	1.15 ± 0.06	C10H18O
Carvone	9.01	1,248	6.2 ± 0.15	C10H14O
Bornyl acetate	9.54	1,286	1.6 ± 0.07	C12H20O2
Oxygenated monoterpenes			67.36
β-Bourbonene	10.93	1,385	0.89 ± 0.03	C15H24
β-Elemene	10.98	1,391	0.82 ± 0.03	C15H24
trans-β-Caryophyllene	11.41	1,419	4.01 ± 0.73	C15H24
α-Humulene	11.85	1,455	2.13 ± 0.11	C15H24
Germacrene-D	12.18	1,462	2.52 ± 0.53	C15H24
Germacrene-B	12.37	1,535	0.9 ± 0.08	C15H24
Sesquiterpene hydrocarbons			11.27
Globulol	13.48	1,590	1.67 ± 0.16	C15H26O
Viridiflorol	13.61	1,591	9.9 ± 0.67	C15H26O
Oxygenated sesquiterpenes			11.58
Humulene epoxide	13.78	1,606	0.86 ± 0.02	C15H24O
Oxygenated sesquiterpenoid			0.86
Total identified	99.92

^†Identification of components based on the GC-MS Wiley version 7.0 library and National Institute of Standards and Technology 05 MS (NIST) data library.

^‡RI, retention index.

^§Percentages of the total of the essential oil (EO) from the leaves of S. officinalis are the means of 3 runs and were obtained from electronic integration measurements using a selective mass detector.