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Table 3 Chemical composition, retention indices and percentage composition of the M. vulgare essential oil.

From: The in-vitro evaluation of antibacterial, antifungal and cytotoxic properties of Marrubium vulgare L. essential oil grown in Tunisia

Compound RI % Identification
1 N-trimethylsilyl trifluoroacetamide 764 2.35 MS, RI
2 N, N-bis trimethylsilyl trifluoroacetamide 857 0.97 MS, RI
3 α- pinene 932 1.16 MS, RI
4 Camphene 948 0.49 MS, RI
5 1,8-Cineole 1044 3.72 MS, RI
6 α-thujone 1131 2.29 MS, RI
7 1-Vinylcyclohexane 1143 0.75 MS, RI
8 Camphor 1174 1,03 MS, RI
9 Iso menthone 1197 0.57 MS, RI
10 Borneol 1199 0.61 MS, RI
11 β-citronellol 1266 9.90 MS, RI
12 Geraniol 1295 2.74 MS, RI
13 Citronellyl formate 1315 9.50 MS, RI
14 Geranyl formate 1344 6.25 MS, RI
15 α-copaene 1419 1.37 MS, RI
16 β-Bourbonene 1429 1.96 MS, RI
17 trans-caryophyllene 1462 2.15 MS, RI
18 α-Muurolene 1484 0.63 MS, RI
19 α-amorphene 1490 0.81 MS, RI
20 α-Humulene 1495 0.68 MS, RI
21 Neoalloocimene 1502 0.91 MS, RI
22 neryl acetate 1512 3.41 MS, RI
23 Germacrene-D 1521 9.37 MS, RI
24 Ledene 1534 5.35 MS, RI
25 β-bisabolene 1544 0.86 MS, RI
26 δ-cadinene 1559 3.30 MS, RI
27 α -agarofuran 1581 0.42 MS, RI
28 Furan-2-one, 4-phenyltetrahydro 1616 1.44 MS, RI
29 γ-Eudesmol 1647 11.93 MS, RI
30 β-Cubebene 1674 1.52 MS, RI
31 Citronellyl butanoate 1682 0.66 MS, RI
32 Geranyl tiglate 1712 5.53 MS, RI
33 Cyclononasiloxane, octadecamethyl 2198 3.08 MS, RI
34 Eicosamethylcyclodecasiloxane 2264 2.29 MS, RI
Total identification   100  
Yield (g/100 g dry weight)   00.34  
Hydrocarbon monoterpenes   01.65  
Oxygenated monoterpenes   40.02  
Hydrocarbon sesquiterpenes   42.70  
Oxygenated sesquiterpene   06.19