## 2 Results and Discussion  
### Composition of Volatile Organic Compounds Obtained by Hydrodistillation--Essential Oil and Hydrosol  
During hydrodistillation of the air-dried plant, both the essential oil (EO) and the hydrosol (HY) were isolated and analyzed. The percentage of compounds identified was 99.56% (EO) and 99.48% (HY) of the total compounds detected (Table 1). In both samples,the group of benzene derivatives (Figure 1) dominated with myristicin as the most abundant constituent (63.92%, EO; 66.67%, HY) (Figure 2). Its isomer (\(E\))-isomyristicin was detected in a small amount in EO (0.04%), but not in HY. Elemicin (0.82%, EO; 5.13%, HY) and its isomer, (\(E\))-isoelemicin (0.01%, EO; 0.15%, HY), were also detected and identified. \begin{table}
\begin{tabular}{c l c c c} \hline \multirow{2}{*}{**No.**} & \multirow{2}{*}{**Compound**} & \multirow{2}{*}{**RI**} & \multicolumn{2}{c}{**Average Area\% \(\pm\) SD**} \\ \cline{3-5}  & & & **EO** & **HY** \\ \hline
1 & Furfural & \(<\)900 & - & 0.40 \(\pm\) 0.08 \\
2 & (\(E\))-Hex-2-enal & \(<\)900 & 0.03 \(\pm\) 0.03 & 0.11 \(\pm\) 0.03 \\
3 & Ethylbenzene & \(<\)900 & - & 0.56 \(\pm\) 0.00 \\
4 & p-Xylene & \(<\)900 & - & 2.24 \(\pm\) 0.04 \\
5 & Nonane & 901 & 0.48 \(\pm\) 0.10 & - \\
6 & (\(Z\))-Non-2-ene & 917 & 0.02 \(\pm\) 0.00 & - \\
7 & \(\alpha\)-Thujene & 934 & 0.12 \(\pm\) 0.03 & - \\
8 & \(\alpha\)-Pinene & 942 & 0.06 \(\pm\) 0.01 & - \\
9 & Benzaldehyde & 966 & 0.01 \(\pm\) 0.00 & 0.18 \(\pm\) 0.02 \\
10 & Sujnene & 982 & 10.23 \(\pm\) 0.33 & - \\
11 & \(\beta\)-Pinene & 985 & 0.26 \(\pm\) 0.06 & - \\
12 & \(\beta\)-Myrcene & 994 & 0.68 \(\pm\) 0.13 & - \\
13 & Decane & 1001 & 0.02 \(\pm\) 0.00 & - \\
14 & \(\alpha\)-Phellanderene & 1009 & 0.01 \(\pm\) 0.00 & - \\
15 & \(\delta\)-3-Carene & 1016 & 0.01 \(\pm\) 0.00 & - \\
16 & \(\alpha\)-Terpinene & 1023 & 0.34 \(\pm\) 0.08 & - \\
17 & \(p\)-Cymene & 1031 & 0.85 \(\pm\) 0.18 & - \\
18 & \(\beta\)-Phellandrene & 1036 & 0.09 \(\pm\) 0.02 & - \\
19 & Eucalyptus & 1038 & 0.01 \(\pm\) 0.00 & \\
20 & Benzyl alcohol & 1040 & - & 0.25 \(\pm\) 0.01 \\
21 & (\(E\))-\(\beta\)-Ocimene & 1045 & 7.95 \(\pm\) 0.12 & - \\
22 & Phenylacetaldehyde & 1051 & 0.03 \(\pm\) 0.01 & 0.86 \(\pm\) 0.01 \\
23 & (\(Z\))-\(\beta\)-Ocimene & 1054 & 0.29 \(\pm\) 0.06 & - \\
24 & \(\gamma\)-Terpinene & 1066 & 2.80 \(\pm\) 0.38 & - \\
25 & 2-Methyladecane & 1068 & 0.01 \(\pm\) 0.00 & - \\
26 & (\(E\))-4-Thujanol & 1073 & 0.17 \(\pm\) 0.04 & 2.09 \(\pm\) 0.19 \\
27 & Linalool oxide & 1078 & - & 0.10 \(\pm\) 0.01 \\
28 & \(\alpha\)-Terpinolene & 1092 & 0.25 \(\pm\) 0.05 & 0.18 \(\pm\) 0.03 \\
29 & Linalool & 1101 & - & 3.60 \(\pm\) 0.23 \\
30 & Undecane & 1102 & 1.72 \(\pm\) 0.31 & - \\
31 & 2,\(\delta\)-Dimethylcyclohexan-1-ol & 1113 & - & 0.27 \(\pm\) 0.05 \\
32 & 2-Phenylethylanol & 1118 & - & 0.41 \(\pm\) 0.04 \\
33 & (\(Z\))-\(p\)-Menthen-2-en-1-ol & 1127 & 0.07 \(\pm\) 0.02 & 0.97 \(\pm\) 0.12 \\
34 & (\(Z\))-Alloocimene & 1134 & 0.11 \(\pm\) 0.03 & - \\
35 & Terpinen-1-ol & 1146 & 0.03 \(\pm\) 0.01 & 0.68 \(\pm\) 0.07 \\
36 & \(p\)-Methoxystyrene & 1158 & 0.01 \(\pm\) 0.00 & - \\
37 & Sabine ketone & 1164 & - & 0.10 \(\pm\) 0.02 \\
38 & Terpinen-4-ol & 1183 & 0.99 \(\pm\) 0.20 & 11.36 \(\pm\) 0.59 \\
39 & \(p\)-Cymen-8-ol & 1189 & - & 0.27 \(\pm\) 0.00 \\
40 & \(\alpha\)-Terpineol & 1194 & 0.04 \(\pm\) 0.01 & 0.77 \(\pm\) 0.03 \\
41 & (\(Z\))-Dec-4-enal & 1197 & 0.06 \(\pm\) 0.02 & - \\
42 & (\(Z\))-Piveritol & 1198 & - & 0.14 \(\pm\) 0.01 \\
43 & Dodecane & 1202 & 0.04 \(\pm\) 0.01 & - \\
44 & (\(3Z\),\(5Z\))-2,6-Dimethylocta-3,5,7-trien-2-ol & 1204 & 0.02 \(\pm\) 0.01 & 0.12 \(\pm\) 0.02 \\
45 & Decanal & 1209 & 0.06 \(\pm\) 0.01 & - \\
46 & (\(3Z\),\(5Z\))-2,6-Dimethylocta-3,5,7-trien-2-ol & 1213 & 0.04 \(\pm\) 0.01 & - \\
47 & (\(E\))-Piveritol & 1213 & - & 0.35 \(\pm\) 0.04 \\
48 & Benzothiazole & 1228 & - & 0.35 \(\pm\) 0.03 \\
49 & Thymol methyl ether & 1241 & 2.32 \(\pm\) 0.72 & - \\
50 & Carvacol methyl ether & 1250 & 0.03 \(\pm\) 0.01 & - \\ \hline \end{tabular}
\end{table}