## 2 Results
### Liquid Phase Chemical Composition of EOs
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**N\({}^{\circ}\)**} & \multirow{2}{*}{**Component \({}^{\textbf{1}}\)**} & \multirow{2}{*}{**Symbol \({}^{\textbf{2}}\)**} & \multirow{2}{*}{**Class**} & \multirow{2}{*}{**LRI \({}^{\textbf{3}}\)**} & \multirow{2}{*}{**LRI \({}^{\textbf{4}}\)**} & \multirow{2}{*}{**_A. [PERSON]_ (\%) \({}^{\textbf{5}}\)**} & \multicolumn{2}{c}{_[PERSON]. [PERSON] (\%)_} & \multicolumn{1}{c}{_[PERSON]. [PERSON] (\%) \({}^{\textbf{7}}\)_} & \multicolumn{1}{c}{_[PERSON]_ (\%) \({}^{\textbf{8}}\)**} \\ \hline
1 & santene & other & 880 & 887 & 0.8 \(\pm\) 0.02 & 0.3 \(\pm\) 0.02 & - & - \\
2 & cyclofenchene & m & 892 & 896 & 0.4 \(\pm\) 0.02 & 2.5 \(\pm\) 0.02 & 1.0 \(\pm\) 0.02 & 4.4 \(\pm\) 0.03 \\
3 & tricyclene & m & 913 & 920 & 1.0 \(\pm\) 0.03 & 0.4 \(\pm\) 0.02 & 0.1 \(\pm\) 0.02 & - \\
4 & _a_-pinene & m & 938 & 943 & 20.6 \(\pm\) 0.06 & 12.4 \(\pm\) 0.03 & 36.2 \(\pm\) 0.06 & 3.5 \(\pm\) 0.02 \\
5 & camphene & m & 940 & 946 & 8.1 \(\pm\) 0.02 & 4.9 \(\pm\) 0.02 & 1.5 \(\pm\) 0.02 & 0.4 \(\pm\) 0.02 \\
6 & sabinene & m & 975 & 972 & - & 0.2 \(\pm\) 0.01 & 0.1 \(\pm\) 0.01 & \\
7 & \(\beta\)-pinene & m & 981 & 978 & 4.9 \(\pm\) 0.02 & 17.6 \(\pm\) 0.03 & 1.3 \(\pm\) 0.02 & 0.2 \(\pm\) 0.02 \\
8 & \(\beta\)-myrcene & m & 983 & 987 & tr & 11.3 \(\pm\) 0.03 & 9.4 \(\pm\) 0.04 & 5.1 \(\pm\) 0.03 \\
9 & _a_-phalandrene & m & 1000 & 1005 & - & - & - & 0.1 \(\pm\) 0.02 \\
10 & _p_-cymene & m & 1010 & 1016 & - & 0.3 \(\pm\) 0.02 & - & - \\
11 & limonene & m & 1025 & 1023 & 30.4 \(\pm\) 0.04 & 20.3 \(\pm\) 0.05 & 34.3 \(\pm\) 0.05 & 78.5 \(\pm\) 0.08 \\
12 & \(\gamma\)-terpinene & m & 1057 & 1054 & - & 0.2 \(\pm\) 0.02 & 0.1 \(\pm\) 0.01 & 0.1 \(\pm\) 0.01 \\
13 & terpionelene & m & 1083 & 1080 & 0.3 \(\pm\) 0.02 & 0.8 \(\pm\) 0.02 & 0.4 \(\pm\) 0.02 & 0.6 \(\pm\) 0.02 \\
14 & linalool & m & 1087 & 1095 & 0.2 \(\pm\) 0.02 & - & - & - \\
15 & _p_-cymenene & m & 1092 & 1091 & - & - & - & 0.1 \(\pm\) 0.01 \\
16 & fenchol & m & 1094 & 1098 & - & 0.1 \(\pm\) 0.01 & - & - \\
17 & L-pincarveol & m & 1121 & 1119 & - & - & 2.3 \(\pm\) 0.02 & - \\
18 & _a_-campholenal & m & 1124 & 1125 & 0.3 \(\pm\) 0.02 & - & tr & - \\
19 & camphor & m & 1130 & 1126 & - & 1.6 \(\pm\) 0.03 & - & 0.1 \(\pm\) 0.02 \\
20 & _cis_-sabinol & m & 1135 & 1133 & tr & - & - & - \\
21 & camphene & m & 1154 & 1149 & - & 0.6 \(\pm\) 0.02 & - & - \\
22 & endo-borneol & m & 1160 & 1155 & tr & 1.9 \(\pm\) 0.02 & 0.1 \(\pm\) 0.01 & 0.1 \(\pm\) 0.01 \\
23 & terpennene-4 ol & m & 1162 & 1160 & - & 0.4 \(\pm\) 0.02 & & 0.3 \(\pm\) 0.02 \\
24 & isothujoul & m & 1169 & 1165 & 0.3 \(\pm\) 0.02 & - & - & \\
25 & _a_-terpineol & m & 1188 & 1183 & 0.1 \(\pm\) 0.01 & 0.9 \(\pm\) 0.02 & 0.5 \(\pm\) 0.02 & 0.1 \(\pm\) 0.02 \\
26 & crypton & m & 1192 & 1188 & - & - & 0.4 \(\pm\) 0.02 & - \\
27 & 2-pinene-10-ol & m & 1199 & 1194 & - & 0.1 \(\pm\) 0.02 & - & - \\
28 & linalyl formate & m & 1205 & 1206 & 0.3 \(\pm\) 0.02 & - & - & - \\
29 & citronellol & m & 1219 & 1212 & - & 0.1 \(\pm\) 0.01 & - & 0.1 \(\pm\) 0.01 \\
30 & methyl thymyl & ether & m & 1238 & 1234 & - & 0.2 \(\pm\) 0.02 & 0.6 \(\pm\) 0.02 & 0.2 \(\pm\) 0.02 \\
31 & isobornyl & & & & & & & \\  & formate & m & 1240 & 1237 & - & 0.1 \(\pm\) 0.01 & - & - \\
32 & _a_-ocimene & m & 1244 & 1239 & - & 0.1 \(\pm\) 0.01 & - & - \\
33 & piperitone & m & 1260 & 1254 & - & 0.1 \(\pm\) 0.01 & - & - \\
34 & 2-undecanone & m & 1281 & 1276 & - & 0.1 \(\pm\) 0.01 & - & - \\
35 & bornyl acetate & m & 1297 & 1290 & 7.3 \(\pm\) 0.03 & 7.1 \(\pm\) 0.03 & 1.5 \(\pm\) 0.02 & 1.7 \(\pm\) 0.02 \\
36 & _a_-terpinyl acetate & m & 1350 & 1344 & - & 0.5 \(\pm\) 0.02 & 0.5 \(\pm\) 0.02 & 0.3 \(\pm\) 0.02 \\
37 & citronellol acetate & m & 1355 & 1348 & 0.8 \(\pm\) 0.02 & 0.1 \(\pm\) 0.02 & - & - \\
38 & nerol acetate & m & 1367 & 1363 & 0.6 \(\pm\) 0.02 & - & - & - \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Liquid phase chemical composition (%) of _A. alba_, _P. abies_, _P. cembra_ and _P. mugo_ EOs, as determined by GC-MS.