Table 2.

Chemical composition of essential oils obtained by hydrodistillation (HD) and microwave‐assisted extraction (MAE) of Thymus vulgaris

No	Compoundc	RIb	Relative peak areaa (%)
			HD	MAE
1	α‐Thujene	824	0.5 ± 0.07	0.51 ± 0.35
2	α‐Pinene	829	0.4 ± 0.01	0.35 ± 0.21
3	Camphene	846	0.4 ± 0.02	0.45 ± 0.22
4	Vinyl amyl carbinol	880	0.8 ± 0.03	0.92 ± 0.01
5	Myrcene	889	0.7 ± 0.16	0.48 ± 0.17
6	2‐Ethylhexanol	898	0.2 ± 0.01	0.20 ± 0.01
7	α‐Terpinene	916	1.0 ± 0.23	0.92 ± 0.25
8	p‐Cymene	825	11.2 ± 1.89	11.79 ± 1.22
9	Limonene	928	0.4 ± 0.11	0.43 ± 0.08
10	γ‐Terpinene	960	3.4a ± 0.37	1.37b ± 0.19
11	Trans‐p‐menth‐2‐en‐1‐ol	969	0.8a ± 0.04	1.74b ± 0.04
12	Linalool	999	1.7a ± 0.07	2.22b ± 0.06
13	Isoborneol	1,070	2.3 ± 0.23	2.79 ± 0.25
14	Terpinen‐4‐ol	1,079	1.1 ± 0.30	0.79 ± 0.08
15	α‐Terpineol	1,109	0.1 ± 0.01	0.18 ± 0.06
16	Thymol	1,193	55.3 ± 1.2	50.53 ± 1.36
17	Carvacrol	1,214	8.7 ± 3.03	6.65 ± 2.10
18	β‐Caryophyllene	1,322	4.2 ± 0.18	4.88 ± 0.98
19	Aromadendrene	1,339	0.3 ± 0.01	0.39 ± 0.10
20	α‐Humulene	1,356	0.1 ± 0.01	0.15 ± 0.02
21	Viridiflorene	1,391	0.2 ± 0.01	0.29 ± 0.00
22	Δ‐Cadinene	1,417	0.2 ± 0.01	0.20 ± 0.06
23	Acetovanillone	1,460	1.7a ± 0.09	4.55b ± 0.21
24	Spathulenol	1,478	0.7 ± 0.06	0.67 ± 0.19
25	Caryophyllene oxide	1,483	0.9 ± 0.08	0.97 ± 0.27
Total peak area (%)			97.2	94.35

^aMean ± SD (n = 2).

^bRetention Index on nonpolar HP‐5ms column in reference to n‐alkanes.

^cDifferent letters in the same row denote significant difference, LSD Fisher's test (p < 0.05).