## 3 Results
### Volatile Compounds in Essential Oils and Recovery Oils
\begin{table}
\begin{tabular}{l l c c c c c} \hline \hline
**No.** & **Volatile Compound** & **Range in EO** & **EO-K\({}_{\text{T}}\)** & **EO-K\({}_{\text{P}}\)** & **Range in RO** & **RO-K\({}_{\text{T}}\)** & **RO-K\({}_{\text{P}}\)** \\ \hline
1 & 6-methyl-5-Hepten-2-one & nd–0.1 & 0.00 & 0.00 & 0.3–2.1 & \(-\)2.89 & 0.33 \\
2 & 1,8-Cineole & nd–0.2 & \(-\)0.04 & 0.02 & nd & 0.00 & 0.00 \\
3 & _cis_-Linalool oxide (furanoid) & nd & 0.00 & 0.00 & 0.1 & 0.00 & 0.00 \\
4 & Linalool & 0.1–1.2 & \(-\)1.49 & 0.24 & 0.3–1.9 & \(-\)2.17 & 0.35 \\
5 & \(\alpha\)-pinene oxide- & nd-0.3 & 0.48 & \(-\)0.05 & nd–0.1 & \(-\)0.08 & 0.00 \\
6 & _cis_-Rose oxide & 0.1 & 0.00 & 0.00 & 0.1 & 0.00 & 0.00 \\
7 & _trans_-Rose oxide & nd–0.1 & 0.08 & 0.00 & nd–0.1 & \(-\)0.08 & 0.00 \\
8 & Camphor & nd & 0.00 & 0.00 & tr–0.2 & \(-\)0.24 & 0.04 \\
9 & \(\beta\)-Ppinene oxide & nd & 0.00 & 0.00 & nd–0.6 & \(-\)0.48 & 0.02 \\
10 & _trans_-Chrysanthemal & 0.2–0.6 & 0.48 & \(-\)0.08 & nd–0.5 & 0.40 & \(-\)0.02 \\
11 & iso-Isopulegol & nd–1.7 & \(-\)1.36 & 0.07 & nd & \(-\)0.24 & 0.01 \\
12 & Citronellal & nd–1.6 & 2.61 & \(-\)0.30 & nd & 0.00 & 0.00 \\
13 & Nerol oxide & nd–0.3 & 0.36 & \(-\)0.03 & 0.1–0.2 & 0.20 & \(-\)0.03 \\
14 & Borneol & nd–0.3 & \(-\)0.36 & 0.06 & nd–0.7 & \(-\)0.84 & 0.15 \\
15 & Lavandulol & nd & 0.00 & 0.00 & nd–0.8 & \(-\)0.64 & 0.03 \\
16 & Terpinen-4-ol & nd–0.2 & \(-\)0.24 & 0.04 & nd–0.6 & \(-\)0.72 & 0.13 \\
17 & \(\alpha\)-Terpinenol & 0.1 & 0.00 & 0.00 & 0.2–0.4 & 0.04 & \(-\)0.02 \\
18 & 2,6,6-trimethyl-2-Cyclohexene-1-methanol & nd & 0,00 & 0.00 & nd–0.7 & \(-\)0.56 & 0.03 \\
19 & \(\alpha\)-Cyclogenariol & nd–0.3 & \(-\)0.24 & 0.01 & nd & 0.00 & 0.00 \\
20 & Nerol & 47.5–52.3 & \(-\)2.58 & 0.61 & 43.5–54.3 & \(-\)4.41 & 1.20 \\
21 & Neral & 5.9–6.7 & \(-\)0.76 & 0.05 & 3.8–8.8 & 4.03 & \(-\)0.80 \\
22 & Geraniol & 25.2–27.9 & 2.86 & \(-\)0.52 & 29.4–32.6 & 4.10 & \(-\)0.69 \\
23 & Gerani & 7.0–8.9 & 0.29 & \(-\)0.15 & 2.9–8.4 & 4.23 & \(-\)0.86 \\
24 & Citronellyformate & nd-0.4 & \(-\)0.48 & 0.08 & nd & 0.00 & 0.00 \\
25 & Nerylformate & nd–0.5 & \(-\)0.40 & 0.08 & nd & 0.00 & 0.00 \\
26 & Thymol & nd–0.1 & 0.20 & \(-\)0.03 & nd & 0.00 & 0.00 \\
27 & Geranyl formate & nd–0.2 & \(-\)0.24 & 0.04 & nd & 0.00 & 0.00 \\
28 & Neryl acetate & nd–0.1 & 0.08 & 0.00 & nd & 0.00 & 0.00 \\
29 & \(\alpha\)-Copaene & nd–0.1 & 0.20 & \(-\)0.03 & nd & 0.00 & 0.00 \\
30 & Geranyl acetate & nd–0.1 & 0.08 & 0.00 & nd & 0.00 & 0.00 \\
31 & _trans_-Caryophyllene & 1.2–2.7 & 1.21 & \(-\)0.24 & nd & 0.00 & 0.00 \\
32 & \(\alpha\)-Humulene & 0.1–0.2 & \(-\)0.08 & 0.00 & nd & 0.00 & 0.00 \\
33 & _trans_-\(\beta\)-Farmesene & nd–0.2 & \(-\)0.16 & 0.01 & nd & 0.00 & 0.00 \\
34 & \(\gamma\)-Cutcumene & nd–0.1 & 0.20 & \(-\)0.03 & nd & 0.00 & 0.00 \\
35 & \(\beta\)-Selinene & nd–0.1 & 0.20 & \(-\)0.03 & nd & 0.00 & 0.00 \\
36 & Caryophyllene oxide & 0.8–1.4 & \(-\)0.52 & 0.10 & nd & 0.00 & 0.00 \\
37 & Humulene epoxide II & nd–0.1 & \(-\)0.12 & 0.02 & nd & 0.00 & 0.00 \\
38 & Rosifolol & nd–0.1 & 0.20 & \(-\)0.03 & nd & 0.00 & 0.00 \\
39 & 14-hydroxy-9-epi-(E)-Caryophyllene & nd–0.1 & 0.08 & 0.00 & nd & 0.00 & 0.00 \\ \hline \hline \end{tabular}  
* Rf—tetention indices; Rf—tetention times; nd—not detected; tt—trace (less than 0.05%); EO—essential oil, RO—Recovery oil from hydrolate; K\({}_{\text{T}}\)—regression coefficients for temperature; K\({}_{\text{F}}\)—regression coefficients for precipitation.  
\end{table} 
Table 2: Range of volatile compounds of Lemon catnip essential oil (EO) and recovery oil from hydrolate (RO), along with regression coefficients for temperature (K\({}_{\text{t}}\)) and precipitation (K\({}_{\text{P}}\)). sesquiiterpene hydrocarbons and oxygenated sesquiterpenes, such as _trans_-caryophyllene (1.2-2.7%), \(\alpha\)-humulene, \(\beta\)-selinene, and caryophyllene oxide (up to 1.4%), were largely confined to essential oil, with no detectable levels in recovery oil across the three years, highlighting their hydrophobicity.