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. 2021 Jul 30;10(8):1768. doi: 10.3390/foods10081768

Table 1.

Chemical composition (%) of liquid and vapor phase R. officinalis essential oil (EO).

N° COMPONENT 1 LRI 2 LRI 3 R. officinalis (%) 4 R. officinalis (%) 5
1 α-pinene 945 943 51.2 ± 0.02 74.7 ± 0.1
2 camphene 948 946 5.6 ± 0.04 6.5 ± 0.02
3 dehydrosabinene 961 958 1.1 ± 0.04 1.1 ± 0.02
4 β-myrcene 982 983 2.0 ± 0.05 1.1 ± 0.02
5 β-pinene 990 986 3.4 ± 0.03 2.8 ± 0.02
6 α-phellandrene 1000 1006 * 0.2 ± 0.02 -
7 α-terpinene 1010 1008 0.4 ± 0.02 0.2 ± 0.02
8 p-cymene 1020 1016 2.0 ± 0.05 0.9 ± 0.02
9 limonene 1022 1023 4.8 ± 0.03 1.7 ± 0.02
10 1,8-cineole 1025 1027 20.1 ± 0.15 10.0 ± 0.05
11 γ-terpinene 1051 1054 0.9 ± 0.04 0.3 ± 0.02
12 terpinolene 1080 1078 0.7 ± 0.02 0.2 ± 0.02
13 p-cymenene 1085 1083.4 0.1 ± 0.01 -
14 linalool 1096 1092 1.0 ± 0.05 0.2 ± 0.02
15 camphor 1125 1126 0.8 ± 0.06 0.2 ± 0.04
16 borneol 1155 1152 0.2 ± 0.02 0.1 ± 0.01
17 endo-borneol 1158 1155 0.9 ± 0.03 -
18 terpinen-4-ol 1161 1160 0.3 ± 0.02 -
19 α-terpineol 1182 1183 0.4 ± 0.01 -
20 verbenone 1192 1196 0.6 ± 0.02 -
21 geraniol 1234 1237 0.4 ± 0.02 -
22 bornyl acetate 1262 1268 1.0 ± 0.07 -
23 nerol acetate 1362 1363 0.3 ± 0.02 -
24 β-caryophyllene 1424 1426 1.4 ± 0.03 -
25 α-curcumene 1478 1475 0.1 ± 0.02 -
26 caryophyllene oxide 1586 1583 0.1 -
SUM (%) 100.0 100.0
Monoterpene hydrocarbons 71.5 89.5
Oxygenated monoterpenes 26.0 10.5
Sesquiterpene hydrocarbons 1.5 -
Oxygenated sesquiterpene 0.1 -
Others - -

1 The components are reported according to their elution order on a polar column; 2 linear retention indices measured on a polar column; 3 linear retention indices from literature; 4 percentage mean values of R. officinalis EO components (liquid phase); 5 percentage mean values ± SD (standard deviation) of R. officinalis EO components (vapor phase); * Normal Alkane retention index; -, not detected.