## 3 Results and Discussion
**} & \multicolumn{2}{c}{**Relative GC\(\times\)GC–MS**} & \multicolumn{2}{c}{**TIC Area (\%)**} \\ \cline{5-14}  & & & & & & & & & & & & \\ \cline{1-1} \cline{5-14}  & 8.9 & 1.28 & Hexanal & Ald & 66-25-1 & C\({}_{\text{R}}\)H\({}_{2}\)O & \(800\pm 2\) & 800 & 0.005 & 0.015 & ND & 0.009 & 0.002 \\
2 & 10.9 & 0.90 & Propyl isobutyrate & Est & 644-49-5 & C\({}_{\text{F}}\)H\({}_{41}\)O\({}_{2}\) & \(842\pm 6\) & 848 & ND & ND & 0.005 & ND & 0.002 \\
3 & 11.4 & 0.99 & Isobutyl propionate & Est & 540-42-1 & C\({}_{\text{F}}\)H\({}_{41}\)O\({}_{2}\) & \(866\pm 2\) & 859 & ND & ND & ND & ND & 0.011 \\
4 & 11.7 & 1.21 & Ethylbenzene & Hyd & 100-41-4 & C\({}_{\text{F}}\)H\({}_{41}\)O\({}_{2}\) & \(855\pm 10\) & 867 & ND & ND & ND & 0.004 & ND \\
5 & 11.9 & 1.16 & 2-Methylbutyl acetate & Est & 624-41-9 & C\({}_{\text{F}}\)H\({}_{41}\)O\({}_{2}\) & \(880\pm 3\) & 871 & ND & ND & 0.007 & ND & 0.046 \\
6 & 13.7 & 0.93 & Isobutyl isobutyrate & Est & 97-85-8 & C\({}_{\text{F}}\)H\({}_{41}\)O\({}_{2}\) & \(910\pm 4\) & 912 & 0.025 & 0.032 & 0.352 & ND & 0.695 \\
7 & 14.1 & 1.36 & Methyl hexanoate & Est & 106-70-77 & C\({}_{\text{F}}\)H\({}_{41}\)O\({}_{2}\) & \(925\pm 3\) & 920 & 0.023 & 0.019 & ND & 0.008 & 0.030 \\
8 & 14.2 & 0.71 & (E)-1,3-Nonadiene & Hyd & 56700-77 & C\({}_{\text{F}}\)H\({}_{41}\) & \(924\pm 0\) & 922 & ND & ND & 0.015 & ND & ND \\
9 & 14.4 & 0.67 & \(\alpha\)-Thriene & MHJ & 2867-05-2 & C\({}_{\text{F}}\)H\({}_{41}\)O\({}_{2}\) & \(929\pm 2\) & 927 & 0.023 & 0.044 & 0.006 & 0.037 & ND \\
10 & 14.7 & 0.67 & \(\alpha\)-Thriene & MHJ & 80-86-8 & C\({}_{\text{F}}\)H\({}_{41}\)O\({}_{2}\) & \(937\pm 3\) & 933 & 0.037 & 0.147 & 0.106 & 0.017 & 0.267 \\
11 & 14.8 & 1.93 & Methyl 4-methyl-3- & Est & 2288-65-3 & C\({}_{\text{F}}\)H\({}_{41}\)O\({}_{2}\) & NA & 935 & 0.023 & ND & ND & ND & ND \\
12 & 15.4 & 1.01 & Isobutyl butyrate & Est & 539-90-2 & C\({}_{\text{S}}\)H\({}_{41}\)O\({}_{2}\) & \(955\pm 6\) & 947 & ND & ND & 0.004 & 0.002 & 0.012 \\
13 & 15.4 & 4.09 & 4.4-Dimethyl-2-buten- & Oh & 20019-64-1 & C\({}_{\text{F}}\)H\({}_{5}\)O\({}_{2}\) & \(952\pm 5\) & 947 & ND & 0.086 & ND & ND & ND \\
14 & 15.6 & 0.72 & Camphene \({}^{\text{d}}\) & MHJ & 79-92-5 & C\({}_{\text{F}}\)H\({}_{41}\)O\({}_{2}\) & \(952\pm 2\) & 951 & ND & 0.060 & 0.003 & 0.014 & ND \\
15 & 16.1 & 5.67 & Benzaldehyde & Ald & 100-52-7 & C\({}_{\text{F}}\)H\({}_{4}\)O & \(962\pm 3\) & 961 & ND & ND & 0.003 & ND \\
16 & 16.5 & 1.14 & & propionate & Est & 2438-20-2 & C\({}_{\text{S}}\)H\({}_{41}\)O\({}_{2}\) & \(970\pm 4\) & 969 & 0.010 & ND & 0.081 & 0.051 & 0.706 \\
17 & 16.7 & 0.84 & \(\beta\)-Thriene & MHJ & 28634-89-1 & C\({}_{\text{F}}\)H\({}_{41}\)O\({}_{16}\) & \(966\pm 12\) & 973 & ND & 0.006 & ND & ND & ND \\
18 & 17.0 & 0.76 & \(\beta\)-Pinene \({}^{\text{d}}\) & MHJ & 127-91-4 & C\({}_{\text{F}}\)H\({}_{16}\) & \(979\pm 2\) & 980 & 0.041 & 0.238 & 0.085 & 0.057 & 1.154 \\
19 & 17.2 & 2.05 & one & Ket & 110-93-0 & C\({}_{\text{S}}\)H\({}_{41}\)O\({}_{2}\) & \(986\pm 2\) & 984 & 0.027 & 0.206 & ND & 0.077 & 0.022 \\
20 & 17.2 & 1.25 & Methyl isobutyrate & Est & 2177-83-5 & C\({}_{\text{  
\begin{table}
\begin{tabular}{r r r r r r r r r r r r r r} \hline \hline \multicolumn{1}{c}{**N.**} & \multicolumn{1}{c}{\({}^{1}\)**\({}_{\text{R}}\)**} & \multicolumn{1}{c}{\({}^{2}\)**\({}_{\text{R}}\)**} & \multicolumn{1}{c}{**Compound \({}^{\star}\)**} & \multicolumn{1}{c}{**Class \({}^{\text{a}}\)**} & \multicolumn{1}{c}{**CAS \({}^{\text{a}}\)**} & \multicolumn{1}{c}{**CAS**} & \multicolumn{1}{c}{**Formula**} & \multicolumn{1}{c}{**Lit. RI \({}^{\text{b}}\)**} & \multicolumn{1}{c}{**Exp. **} & \multicolumn{3}{c}{**Relative GC\(\times\)GC-MS**} & \multicolumn{1}{c}{**TIC Area (\%)**} \\ \cline{1-1} \cline{3-14}  & \multicolumn{1}{c}{**(min) (s)**} & & & & & & & & & & & & \\ \hline  
The most abundant compounds detected using the SPME sampling method were related to the sesquiterpene hydrocarbons humulene (**108**) and cryophyllene (**103**), and the monoterpene hydrocarbon \(\beta\)-myrcene (**22**).