## 3 Results and Discussion
### Characterization of Aroma Compounds in RZT Identified by SBSE-GC-MS
\begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline \multirow{2}{*}{**No**} & \multirow{2}{*}{**RT*** **} & \multirow{2}{*}{**Compounds**} & \multirow{2}{*}{**CAS**} & \multirow{2}{*}{**RI*** **} & \multicolumn{2}{c}{**Mean Content of**} & \multicolumn{2}{c}{**Content Range of**} & \multicolumn{1}{c}{**OT*** [FOOTNOTE:*]Footnote **No**} & \multirow{2}{*}{**OAV**} & \multirow{2}{*}{**Odor Type**} \\  & & & & & & & **RZT** & & (ugkgkg) & \\ \hline \multicolumn{1}{c}{Aldehydes} & \multirow{2}{*}{1} & \multirow{2}{*}{7.74} & \multirow{2}{*}{Hexanal} & 66-25-1 & 800 & 51.70 & 47.62-58.08 & 4.5 & 11.49 & Grass \\
2 & 10.29 & & & 111-71-7 & 903 & 39.00 & 34.72-44.76 & 3 & 13.00 & Green \\
3 & 14.33 & & & 124-13-0 & 105 & 18.88 & 17.24-20.26 & 0.7 & 26.97 & Aldehyde \\
4 & 16.14 & 26-Dimethyl-5-Bepstral & 106-72-9 & 1052 & 12.50 & 12.20-12.60 & 10.1 & 1.25 & Malon \\
5 & 17.96 & & Nomental & 124-196 & 1106 & 56.35 & 49.11-61.05 & 1 & 56.35 & Aldehyde \\
6 & 21.51 & & & 112-31-2 & 1208 & 16.75 & 15.18-18.75 & 0.1 & 15.73 & Aldehyde \\
7 & 22.18 & & & 432-25-7 & 1225 & 34.93 & 33.36-36.99 & 3 & 11.64 & Topsoil \\
8 & 23.83 & & & 592-40-5 & 1276 & 23.40 & 21.65-24.42 & 62 & -1 & Gluts \\ \multicolumn{1}{c}{SUM} & \multirow{2}{*}{1} & \multirow{2}{*}{**AM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} \\  & & & & & & & & & & \\
1 & 8.81 & & 2+Dimethyl-2-1-eme & 1958-97-2 & 843 & 20.12 & 18.71-23.94 & NF & - & - \\
2 & 11.90 & & & 93-56-88 & 940 & 16.58 & 14.93-13.14 & 180 & -1 & Hebal \\
3 & 13.87 & & & 123-35-35 & 993 & 22.65 & 20.78-24.60 & 48.5 & -1 & Spicy \\
4 & 14.10 & & 1+Gamma & 2203-83-7 & 1002 & 11.29 & 3.94-13.00 & NF & - & \\
5 & 15.32 & & & 138-66-3 & 1002 & 34.82 & 30.67-20.75 & 4.7 & 8.71 & Fruity \\
6 & 15.98 & & (9-2)-Odense & 57-97-61-1 & 1051 & 22.08 & 20.68-23.30 & 18.7 & 1.18 & Fruori \\
7 & 17.25 & & & 17.03 & (1+1)-nchoose & 7463-90-9 & 1065 & 37.78 & 29.61-46.95 & NF & - & - \\
8 & 18.37 & & (9-4)-S-Dimethyl-1-3,7-eme & 1948-51-0 & 1177 & 27.01 & 24.21-28.85 & NF & - & - \\
9 & 26.40 & & & 17001-148 & 1383 & 15.32 & 12.91-16.44 & NF & - & Herbal \\
10 & 27.72 & & & 13744-155 & 1391 & 21.18 & 11.71-12.85 & NF & - & Citrus \\ \multicolumn{1}{c}{SUM} & \multirow{2}{*}{**Kotens**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} \\  & & & & & & & & & & \\
1 & 7.81 & & 4-methyl-3-Femn-2-eme & 141-79-7 & 802 & 50.31 & 46.90-54.60 & NF & - & Vegetable \\
2 & 10.57 & & & 110-43-0 & 893 & 30.74 & 30.31-31.49 & 140 & 4.52 & Chevey \\
3 & 13.13 & & 2-Dimethyl-3-heptanone & 1070-57-8 & 967 & 22.53 & 19.36-23.29 & NF & - & \\
4 & 15.52 & & 2+-Embedity-5-cyclohexan- & 2008-59-9 & 1041 & 28.45 & 27.21-29.90 & NF & - & Spicy Code \\
5 & 17.02 & & 3+50-4-2 emo-2-eme & 1090 & 49.28 & 47.80-50.74 & 0.5 & 98.57 & Fruity \\
6 & 22.93 & & & 2-isopropyl-5-methyl-2-cyclohexan-1 & 5113-46-6 & 1251 & 9.98 & 9.74-10.40 & NF & - & - \\
7 & 24.46 & & 2+D-demo-eme & 112-12-9 & 1294 & 23.43 & 21.69-24.67 & 7 & 3.35 & Fruity \\
8 & 28.02 & & (2)-2-amino & 488-10-8 & 1307 & 20.67 & 21.93-23.64 & 7 & 32.95 & Herbal \\
9 & 28.82 & & & 2+17-43-13 & 1430 & 22.10 & 20.54-23.58 & 0.4 & 55.26 & Woodly \\
10 & 29.45 & & & 3396-70-14 & 145 & 43.78 & 38.67-43.43 & 60 & -1 & Floral \\
11 & 30.52 & & & 1233-08-3 & 1465 & 17.29 & 16.60-17.94 & NF & - & - \\
12 & 30.59 & & & & & & & & \\
13 & 30.24 & & & & & & & & \\ \multicolumn{1}{c}{SUM} & \multirow{2}{*}{**Exies**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} & \multirow{2}{*}{**SM**} \\  & & & & & & & & & & \\
1 & 11.61 & & Nomental acid, methyl-ester & 106-70-7 & 928 & 22.16 & 20.11-23.88 & 4 & 5.54 & Fruity \\
2 & 14.40 & & 3/2-Hexanal-1-academic & 368-71-8 & 1007 & 125.86 & 144.25-164.41 & NF & - & Green \\ \hline \hline \end{tabular}
\end{table}