## 3 Results and Discussion
### Identification of Aroma Compounds in Peach Spirits
\begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline  & & & & & & \multicolumn{3}{c}{**FD Factor**} \\ \multirow{2}{*}{**No.**} & \multirow{2}{*}{**Compounds**} & \multirow{2}{*}{**CAS**} & \multirow{2}{*}{**Odor Descriptor**} & \multirow{2}{*}{**Identification**} & \multirow{2}{*}{**RI b**} & \multicolumn{3}{c}{**DS**} & \multicolumn{3}{c}{**PS**} \\ \cline{5-10}  & & & & & & **LLE c** & **C** & **LLE c** & **C** \\  & & & & & & **(AF/NBF)** & **SPME c** & **(AF/NBF)** & **SPME c** \\ \hline \multirow{4}{*}{1} & **Esters** & & & MS, RI, & & & & & & \\  & & & & & & & & & & \\  & & & & & & & & & & \\  & & & & & & & & & & \\
2 & Ethyl acetate & 141-78-6 & Fruity & MS, RI, & & & & & & \\  & & & & & & & & & \\
2 & Ethyl isobutyrate & 97-62-1 & Fruity & MS, RI, & & & & & & \\
3 & Isobutyl acetate & 110-19-0 & Fruity & MS, RI, & & & & & \\  & & & & & & & & & \\
4 & Ethyl & 7452-79-1 & Fruity & MS, RI, & & & & & & \\
5 & Ethyl isovalerate & 108-64-5 & Fruity & MS, RI, & & & & & \\  & & & & & & & & & \\  & & & & & & & & & \\  & & & & & & & & & \\
6 & Ethyl butanoate & 105-54-4 & Pineapple & 1110 & - & 3 & - & 27 \\
7 & Isoamyl acetate & 123-92-2 & Banana & MS, RI, & & & & & \\  & & & & & & & & \\  & & & & & & & & & \\
8 & Ethyl hexanoate & 123-66-0 & Sweet, & MS, RI, & & & & & \\  & & & & & & & & \\  & & & & & & & & & \\
9 & Hexyl acetate & 142-92-7 & Fruity, & MS, RI, & & & & & \\  & & & & & & & & & \\  & & & & & & & & \\
10 & Ethyl & 2-hexenoate & 1552-67-6 & Fruity & MS, RI, & & & & & \\  & & & & & & & & & \\
11 & Ethyl lactate & 97-64-3 & Fruity & MS, RI, & & & & & \\  & & & & & & & & \\  & & & & & & & & \\
12 & Ethyl octanoate & 106-32-1 & Fruity & MS, RI, & & & & & \\  & & & & & & & & \\
13 & Ethyl2- & hydroxy-isovalerate & 2441-06-7 & Fruity & MS, RI, & & & & \\  & & & & & & & & \\
14 & Ethyl 3- & hydroxybutyrate & 5405-41-4 & Fruity & MS, RI, & & & & \\  & & & & & & & & \\  & & & & & & & & \\  & & & & & & & & \\
15 & 4-methyl & 10348-47- & Woody, & MS, RI, & & & & & \\  & & & & & & & & \\  & & & & & & & & \\  & & & & & & & & \\  & & & & & & & & \\
16 & Isoamyl lactate & 1932-89- & Fruity, & MS, RI, & & & & & \\  & & & & & & & & \\  & & & & & & & & \\
17 & Ethyl methyl succinate & - & Fruity & MS, RI, & & & & \\  & & & & & & & & \\  & & & & & & & & \\
19 & Ethyl decanoate & 110-38-3 & Fruity & MS, RI, & & & & & \\  & & & & & & & & \\
20 & Diethyl succinate & 123-25-1 & Fruity & MS, RI, & & & & \\  & & & & & & & & \\  & & & & & & & & \\
21 & Trimethylene & acetate & 628-66-0 & Green & MS, RI & & & & \\  & & & & & & & & \\
22 & Ethyl & 106-33-2 & Floral, & MS, RI, & & & & & \\  & & & & & & & & \\  & & & & & & & & \\
23 & Isoamyl & 2306-91-4 & Waxy, & MS, RI, & & & & & \\  & & & & & & & & \\  & & & & & & & & \\  & & & & & & & & \\
24 & Ethyl & 124-06-1 & Sweet & MS, RI, & & & & & \\  & & & & & & & & \\
25 & 3-Methylbutyl & dodecanoate & 6309-51-9 & Gree & MS, RI, & & & & \\  & & & & & & & & \\  & & & & & & & & \\
26 & Ethyl & 41114-00- & Sweet, & MS, RI, & & & & & \\  & & & & & & & & \\  & & & & & & & & \\  & & & & & & & \\  & & & & & & & & \\  & & & & & & & & \\
27 & Ethyl hexadecanoate & 628-97-7 & Waxy, oily & 2250 & 1/9 & - & & -/3 & - \\  & & & & & & & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Aroma-active compounds identified by GC-O-MS in peach spirits. \begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline  & & & & & & & \multicolumn{3}{c}{FD Factor} \\
**No.