## 3 Results and Discussion
### Comparison of Volatile Components of Rice Grains Stored under Different Conditions
\begin{table}
\begin{tabular}{c c c c c} \hline \hline  & & & & \\ \cline{3-4}
**N0** & **Compound Name** & \multicolumn{2}{c}{**Storage Conditions (Mean \(\pm\) SD)**} \\ \cline{3-4}  & & **RA** & **RB** & **RC** \\ \hline Aldehydes & & & & \\
1 & Nonanal & 17.55 \(\pm\) 5.58 a & 36.15 \(\pm\) 10.09 a & 20.42 \(\pm\) 7.65 a \\ Alkenes & & & & \\
1 & 1-Dodecene & 3.39 \(\pm\) 0.24 a & ND & ND \\
2 & 4,6,8-Trimethyl- 1-nonene & 3.57 \(\pm\) 0.59 a & 3.99 \(\pm\) 1.02 a & ND \\  & -1-Nonene, & 4.28 \(\pm\) 0.50 a & 4.78 \(\pm\) 0.35 a & 4.45 \(\pm\) 0.05 a \\
3 & 1-Tetradecene & 4.28 \(\pm\) 0.50 a & 4.78 \(\pm\) 0.35 a & 4.45 \(\pm\) 0.05 a \\ Hydrocarbons & & & & \\
1 & 2,3,5,8-Tetramethyldecane- & 6.80 \(\pm\) 7.34 a & ND & ND \\
2 & Dodecane & 11.45 \(\pm\) 1.19 a & 15.04 \(\pm\) 3.12 a & 13.02 \(\pm\) 1.47 a \\
3 & 2,6,10-Trimethyldodecane & 7.94 \(\pm\) 1.74 b & 8.3 \(\pm\) 1.93 b & 22.25 \(\pm\) 1.96 a \\
4 & 2,6,11-Trimethyldodecane & 51.61 \(\pm\) 6.01 a & 54.22 \(\pm\) 11.98 a & 45.62 \(\pm\) 18.80 a \\
5 & 4-Cyclohexyldodecane & 7.26 \(\pm\) 1.00 a & 7.32 \(\pm\) 0.61 a & 7.39 \(\pm\) 0.51 a \\
6 & 5-Methyldodecane & 6.18 \(\pm\) 0.25 a & 5.80 \(\pm\) 0.03 a & ND \\
7 & Eicosane & 29.75 \(\pm\) 3.49 a & 51.58 \(\pm\) 19.06 a & 35.92 \(\pm\) 18.65 a \\
8 & 10-Methyl- eicosane & 5.32 \(\pm\) 0.10 a & ND & ND \\
9 & Eicosane & & & \\
9 & Heptadecane & ND & 11.77 \(\pm\) 1.21 a & 15.09 \(\pm\) 7.07 a \\
10 & 2,6,10,15- & 5.37 \(\pm\) 0.8 a & ND & ND \\
11 & 2,6,10,14- & 5.13 \(\pm\) 0.98 a & ND & ND \\ Tetramethylhexadecane & & & & \\
12 & Nonadecane & 22.81 \(\pm\) 12.74 a & 22.35 \(\pm\) 6.78 a & 20.32 \(\pm\) 7.82 a \\
13 & Pentadecane & 15.38 \(\pm\) 13.30 a & 17.14 \(\pm\) 3.74 a & 21.35 \(\pm\) 6.26 a \\
14 & 2-Methylpentadecane & 2.64 \(\pm\) 0.10 a & 2.51 \(\pm\) 0.35 a & 2.82 \(\pm\) 0.22 a \\
15 & 3-Methylpentadecane & 7.82 \(\pm\) 0.07 a & 8.08 \(\pm\) 0.28 a & 7.90 \(\pm\) 0.75 a \\
16 & Tetradecane & 14.17 \(\pm\) 1.09 a & 6.84 \(\pm\) 0.54 b & 7.42 \(\pm\) 1.26 b \\
17 & Tridecane & 5.78 \(\pm\) 1.13 a & ND & ND \\
18 & 2-Methylrladecane & 9.97 \(\pm\) 0.86 a & 12.58 \(\pm\) 2.74 a & 11.77 \(\pm\) 1.35 a \\
19 & 3-Methylrlreduceane & 10.12 \(\pm\) 1.15 a & 12.58 \(\pm\) 2.74 a & 11.77 \(\pm\) 1.35 a \\
20 & 4-Methylrlreduceane & 1.96 \(\pm\) 0.18 a & 2.60 \(\pm\) 0.04 a & 2.54 \(\pm\) 0.27 a \\
21 & 2,4-Dimethylundecane & 17.76 \(\pm\) 0.92 a & 16.91 \(\pm\) 1.87 a & 14.85 \(\pm\) 5.03 a \\
22 & 2,6-Dimethylundecane & 8.58 \(\pm\) 0.89 a & 11.63 \(\pm\) 4.03 a & 10.60 \(\pm\) 3.33 a \\
23 & 3-Methylleneundecane & 1.85 \(\pm\) 0.40 b & 6.11 \(\pm\) 2.24 a & 2.13 \(\pm\) 0.44 b \\
24 & 4,8-Dimethylundecane & 5.12 \(\pm\) 1.52 a & 7.14 \(\pm\) 3.80 a & 6.75 \(\pm\) 1.15 a \\
25 & 3,5-Dimethyldodecane & ND & 2.56 \(\pm\) 0.37 a & ND \\
26 & Cyclotridecane & ND & 3.80 \(\pm\) 0.03 a & ND \\
27 & 4-Ethyladecane & ND & 2.92 \(\pm\) 0.45 a & ND \\
28 & Heneicosane & ND & 5.62 \(\pm\) 0.19 a & ND \\
29 & 2-Methylheptadecane & ND & 1.67 \(\pm\) 0.95 a & ND \\
30 & Hexadecane & ND & 11.77 \(\pm\) 1.21 a & 15.09 \(\pm\) 7.07 a \\
31 & 4-Methylhexadecane & ND & 2.03 \(\pm\) 0.31 a & ND \\
32 & 4,5-Dimethyllnonane & ND & 10.69 \(\pm\) 4.66 a & 8.61 \(\pm\) 3.84 a \\
33 & Octadecane & ND & 4.72 \(\pm\) 0.72 a & ND \\
34 & 5-Methyloctadecane & ND & 9.17 \(\pm\) 3.04 a & 10.90 \(\pm\) 3.42 a \\
35 & 4-Methylundecane & ND & 3.02 \(\pm\) 0.92 a & 2.47 \(\pm\) 0.27 a \\
36 & 5,7-Dimethylundecane & ND & 5.32 \(\pm\) 4.83 a & ND \\
37 & 2-Methyldodecane & ND & ND & 1.16 \(\pm\) 1.01 a \\
38 & 4,6-Dimethyldodecane & ND & ND & 7.06 \(\pm\) 4.11 a \\
39 & 5-Methyldodecane & ND & ND & 5.61 \(\pm\) 0.03 a \\
40 & 11-(1-Ethylpropyl)- & ND & ND & 2.79 \(\pm\) 0.16 a \\  & 2,6,11,15- & & & \\
41 & Tetramethylhexadecane & ND & ND & 4.01 \(\pm\) 2.4 a \\ Hexadecane & & & & \\ \hline \hline \end{tabular}
\end{table}