# Comparison and Identification of the Aroma-Active Compounds in the Root of _Angelica dahurica_
## 2 Results and Discussion
### Comparison of Quantity of Aroma Compounds by the Different Extraction Methods
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**No**} & \multirow{2}{*}{**Compound**} & \multirow{2}{*}{**Odour 1**} & \multicolumn{2}{c}{**RI 2**} & \multicolumn{2}{c}{**Extract Method/Identification 3**} \\ \cline{4-9}  & & & **DB-Wax** & **DB-5** & **H  
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**No**} & \multirow{2}{*}{**Compound**} & \multirow{2}{*}{**Odour 1**} & \multicolumn{2}{c}{**RI 2**} & \multicolumn{2}{c}{**Extract Method/Identification 3**} \\ \cline{3-8}  & & & **DB-Wax** & **DB-5** & **Hangbiazhi** & **Qibiazhi** & **Bobiazhi** \\ \hline
27 & \(\beta\)-Selienne & herb & 1711 & 1436 & \begin{tabular}{c} SPME, P\&T, \\ DHS/MS, RI \\ \end{tabular} & \
\begin{tabular}{c} SPME, SBSE, \\ DHS/MS, RI \\ \end{tabular} &
\begin{tabular}{c} SPME, DHS/MS, RI \\ \end{tabular} \\ \hline
28 & \(\delta\)-Cadinene &
\begin{tabular}{c} thyme, \\ woody \\ \end{tabular} & 1749 & - & DHS/MS, RI & DHS/MS, RI \\ \hline
29 & \(\alpha\)-Gurjunne & \
\begin{tabular}{c} woody, \\ balsamic \\ \end{tabular} & 1760 & - & DHS/MS, RI &
\begin{tabular}{c} SPME, DHS/MS, RI \\ \end{tabular} & - \\ \hline
30 & \(\alpha\)-Guaiene &
\begin{tabular}{c} woody, \\ balsamic \\ \end{tabular} & 1801 & & - & SPME/MS, RI & - \\ \hline
31 & \(\gamma\)-Selienne & woody & 1803 & 1455 & \
\begin{tabular}{c} SBSE, DHS/MS, RI, \\ O \\ \end{tabular} & - &
\begin{tabular}{c} SPME/MS, RI \\ \end{tabular} \\ \hline
32 & \(\beta\)-Guaiene &
\begin{tabular}{c} woody, \\ spice \\ \end{tabular} & 1831 & 1483 & - & - & SPME, DHS/MS, RI \\ \hline
33 & Germacrene B &
\begin{tabular}{c} woody, \\ earth, \\ spice \\ \end{tabular} & 1864 & 1562 & SPME/MS, RI & SPME, DHS/MS, RI & SPME/MS, RI \\ \hline
34 & \begin{tabular}{c} Caryophyllene \\ oxide \\ \end{tabular} & \begin{tabular}{c} herb, \\ sweet, \\ spice \\ \end{tabular} & 1962 & \begin{tabular}{c} SPME, SBSE/MS, RI, \\ O \\ \end{tabular} & \
\begin{tabular}{c} SPME, SBSE/MS, RI, \\ O \\ \end{tabular} &
\begin{tabular}{c} SPME/MS, RI, O \\ \end{tabular} \\ \hline
35 & \begin{tabular}{c} Spathuelenol \\ \end{tabular} & herb, fruit & 2129 & \begin{tabular}{c} SBSE, DHS/MS, RI \\ \end{tabular} & \
\begin{tabular}{c} SBSE/MS, RI \\ \end{tabular} &
\begin{tabular}{c} SBSE/MS, RI \\ \end{tabular} \\ \hline
**Aromatics** \\ \hline
36 & Toluene & paint & 1042 & 773 & DHS/MS, RI & - & - \\ \hline
37 &
\begin{tabular}{c} Benzene, \\ 1,3-dimethyl- \\ \end{tabular} & plastic & 1150 & 802 & DHS/MS, RI & - & - \\ \hline
38 & \(o\)-Xylene & geranium & 1183 & 888 & DHS/MS, RI & - & - \\ \hline
39 & \(\alpha\)-\(p\)-Dimethylstyrene & citrus, pine & 1414 & & - & - & P\&T/MS, RI \\ \hline
40 & \(\alpha\),3-Dimethylstyrene & cocoa & 1430 & & - & P\&T/MS, RI & - \\ \hline
41 & Estragole &
\begin{tabular}{c} licorice, \\ anise \\ \end{tabular} & 1655 & 1200 & - & - & - & SBSE/MS, RI \\ \hline
42 & Anethole & spice & 1809 & & - & SBSE/MS, RI & - \\ \hline
43 & Isoelemicin & spice, & 1944 & 1596 & \begin{tabular}{c} SPME, SBSE, \\ DHS/MS, RI \\ \end{tabular} & \begin{tabular}{c} SPME, SBSE, \\ SPME, SBSE/MS, RI \\ \end{tabular} & \begin{tabular}{c} SPME, SBSE, \\ SPME, SBSE/MS, RI \\ \end{tabular} & \
\begin{tabular}{c} SPME, SBSE/MS, RI \\ \end{tabular} &
\begin{tabular}{c} SBSE/MS, RI \\ \end{tabular} \\ \hline
**Alcohols** \\ \hline
44 &
\begin{tabular}{c} 3-Buten-2-ol, \\ 2-methyl- \\ \end{tabular} & herb & 968 & - & DHS/MS, RI & DHS/MS, RI \\ \hline
45 & Prend & herb & 1127 & 779 & \begin{tabular}{c} SPME/MS, RI, O, \\ STD \\ \end{tabular} & \begin{tabular}{c} SPME, DHS/MS, RI, \\ O, STD \\ \end{tabular} & \
\begin{tabular}{c} SPME, SBSE, \\ DHS/MS, RI \\ \end{tabular} &
\begin{tabular}{c} SPME, P\&T, \\ DHS/MS, RI, O, STD \\ \end{tabular} \\ \hline
46 & 1-Hexanol &
\begin{tabular}{c} resin, \\ flower \\ \end{tabular} & 1360 & - & P\&T, DHS/MS, RI, O & - \\ \hline
47 & Terpinen-t-ol &
\begin{tabular}{c} turpentine, \\ nutmeg \\ \end{tabular} & 1591 & 1179 & SBSE/MS, RI & - & SBSE/MS, RI \\ \hline
48 & Benzyl alcohol & \begin{tabular}{c} sweet, \\ flower \\ \end{tabular} & 1865 & - & \
\begin{tabular}{c} SPME/MS, RI \\ \end{tabular} &
\begin{tabular}{c} SPME, SBSE, \\ DHS/MS, RI \\ \end{tabular} \\ \hline
49 & 1-Dodecanol & fat, wax & 1972 & 1577 & SBSE/MS, RI &
\begin{tabular}{c} SPME, SBSE, \\ DHS/MS, RI \\ \end{tabular} & - \\ \hline
50 & 1-Hexadecanol &
\begin{tabular}{c} wax, \\ flower \\ \end{tabular} & 2378 & - & - & - & SBSE/MS, RI \\ \hline
**Aldehydes** \\ \hline
51 & Butanal, 3-methyl- & malt & 910 &
\begin{tabular}{c} DHS/MS, RI \\ \end{tabular} & - & DHS/MS, RI \\ \hline
52 & Hexanal & \begin{tabular}{c} grass, \\ tallow, fat \\ \end{tabular} & 1084 & 801 & \begin{tabular}{c} SPME, SBSE, \\ DHS/MS, RI \\ \end{tabular} & \begin{tabular}{c} SPME, P\&T, \\ DHS/MS, RI \\ O, STD \\ \end{tabular} & \
\begin{tabular}{c} SPME, SBSE, \\ DHS/MS, RI, \\ O, STD \\ \end{tabular} &
\begin{tabular}{c} SPME, SBSE, \\ DHS/MS, RI, \\ O, STD \\ \end{tabular} \\ \hline
53 & 2-Methyl-2-butenal & green, fruit & 1101 & 753 & \begin{tabular}{c} SPME, P\&T, \\ O, STD \\ \end{tabular} & \begin{tabular}{c} SPME, DHS/MS, RI \\ O, STD \\ \end{tabular} & \
\begin{tabular}{c} SPME, DHS/MS, RI, \\ O, STD \\ \end{tabular} &
\begin{tabular}{c} SPME, DHS/MS, RI, \\ O, STD \\ \end{tabular} \\ \hline
54 & Heptanal & fat, citrus, \\ \end{tabular} & 1174 & 903 & \begin{tabular}{c} SPME, SBSE, \\ DHS/MS, RI, O, STD \\ \end{tabular} & \
\begin{tabular}{c} SPME, SBSE/MS, RI, \\ O, STD \\ \end{tabular} &
\begin{tabular}{c} SPME, SBSE/MS, RI, \\ O, STD \\ \end{tabular} \\ \hline \hline \end{tabular}