## 3 Results and Discussion
### Effects of Different Sterilization Treatments on the Sensory Quality
#### 3.6.4 GC-MS Analysis
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**NO**} & \multirow{2}{*}{**Ref. Time**} & \multicolumn{4}{c}{**Concentration (sg/L)**} & \multirow{2}{*}{**CAS**} & \multirow{2}{*}{**RI**} \\ \cline{3-3} \cline{5-8}  & & **Compounds** & **Control Group** & **CTS** & **TS** & **TSN** & \\ \hline
1 & 4.293 & (S)-l-Alanine ethylamide & 2.65 \(\pm\) 0.096 a & 1.91 \(\pm\) 0.062 c & 2.27 \(\pm\) 0.043 b & 2.69 \(\pm\) 0.066 a & 71773-95-0 & 1097 \\
2 & 4.517 & Acetaldehyde & 1.27 \(\pm\) 0.087 bc & 1.64 \(\pm\) 0.008 a & 1.22 \(\pm\) 0.091 c & 1.40 \(\pm\) 0.020 b & 75-07-0 & 408 \\
3 & 4.79 & Ethanol & 105.52 \(\pm\) 7.113 a & 89.10 \(\pm\) 5.007 b & 91.46 \(\pm\) 5.047 b & 98.94 \(\pm\) 2.419 ab & 64-17-5 & 463 \\
4 & 4.997 & Acetone & - & 2.26 \(\pm\) 0.090 a & - & 67-64-1 & 455 \\
5 & 5.063 & Isopropyl Alcohol & 5.67 \(\pm\) 0.327 a & 4.95 \(\pm\) 0.100 ab & 4.53 \(\pm\) 0.708 b & 4.92 \(\pm\) 0.426 ab & 67-63-0 & 482 \\
6 & 5.343 & Accite acid, methyl ester & - & - & 1.93 \(\pm\) 0.025 a & 2.06 \(\pm\) 0.100 a & 79-20-9 & 487 \\
7 & 6.52 & acid & 733.41 \(\pm\) 23.161 a & 654.13 \(\pm\) 11.903 b & 615.57 \(\pm\) 6.538 c & 672.90 \(\pm\) 11.100 b & 6628-79-1 & 1046 \\
8 & 7.57 & Isopropyl acetate & 6.29 \(\pm\) 0.780 a & 5.77 \(\pm\) 0.361 ab & 4.71 \(\pm\) 0.181 c & 5.39 \(\pm\) 0.180 b & 108-21-4 & 621 \\
9 & 8.637 & Triethylamine & - & - & - & 2.36 \(\pm\) 0.265 a & 121-44-8 & 667 \\
10 & 8.98 & n-Propyl acetate & 3.55 \(\pm\) 0.108 a & 2.98 \(\pm\) 0.035 b & 2.73 \(\pm\) 0.119 c & 2.85 \(\pm\) 0.040 b & 109-60-4 & 686 \\
11 & 10.64 & Propanoic acid & 1.42 \(\pm\) 0.036 a & 1.13 \(\pm\) 0.010 b & 0.96 \(\pm\) 0.015 c & 0.98 \(\pm\) 0.026 c & 97-62-1 & 721 \\
12 & 11.89 & Hexanal & 67.91 \(\pm\) 0.392 a & 64.81 \(\pm\) 0.034 b & 50.46 \(\pm\) 0.123 d & 54.36 \(\pm\) 0.672 c & 66-25-1 & 806 \\
13 & 12.193 & Butanoic acid ethyl ester & 24.14 \(\pm\) 1.125 a & 20.99 \(\pm\) 0.066 b & 16.63 \(\pm\) 0.203 d & 1.851 \(\pm\) 0.050 c & 105-54-7 & 785 \\
14 & 13.863 & 2-Hexanal & - & - & 1.96 \(\pm\) 0.061 a & - & - & 505-57-7 & 814 \\
15 & 13.84 & (E)-2-Butenoic acid ethyl ethyl & 12.17 \(\pm\) 0.686 a & 10.11 \(\pm\) 0.290 b & 8.42 \(\pm\) 0.271 c & 8.15 \(\pm\) 0.015 c & 623-70-1 & 793 \\
16 & 13.997 & (E)-2-Hexanal & 170.46 \(\pm\) 8.243 a & 148.82 \(\pm\) 1.460 b & 114.75 \(\pm\) 0.051 d & 132.93 \(\pm\) 2.033 c & 6728-26-3 & 814 \\
17 & 14.397 & Butanoic acid & 2.06 \(\pm\) 0.162 a & 1.70 \(\pm\) 0.017 b & 1.34 \(\pm\) 0.111 c & 1.48 \(\pm\) 0.010 c & 7452-79-1 & 820 \\
18 & 14.517 & 3-Hexanal-1 & - & 1.91 \(\pm\) 0.107 b & 1.96 \(\pm\) 0.030 b & 2.09 \(\pm\) 0.067 a & 544-12-7 & 868 \\
19 & 14.523 & (Z)-3-Hexanal-1-ol & 2.22 \(\pm\) 0.127 a & - & 1.97 \(\pm\) 0.032 b & 1.98 \(\pm\) 0.015 b & 928-96-1 & 868 \\
20 & 14.997 & (E)-2-Hexanal-1 & 3.64 \(\pm\) 0.136 a & - & 2.36 \(\pm\) 0.059 b & - & 928-95-0 & 868 \\
21 & 15.003 & (Z)-Hexanal-1-ol & - & 2.49 \(\pm\) 0.083 b & - & 2.69 \(\pm\) 0.044 a & 928-94-9 & 868 \\
22 & 15.14 & 1-Hexanal & 9.25 \(\pm\) 0.127 a & 6.48 \(\pm\) 0.134 c & - & 8.58 \(\pm\) 0.096 b & 111-27-3 & 860 \\
23 & 16.853 & methoxy-phenyl-Oxime & 4.83 \(\pm\) 0.396 bc & 5.10 \(\pm\) 0.256 a & 4.56 \(\pm\) 0.030 c & 5.40 \(\pm\) 0.021 a & 0-00-0 & 1301 \\
24 & 20.427 & 20-Octanone & 2.58 \(\pm\) 0.015 a & 2.39 \(\pm\) 0.026 b & 2.44 \(\pm\) 0.087 b & 2.18 \(\pm\) 0.024 c & 111-13-7 & 952 \\
25 & 20.947 & Hexanoic acid ethyl ester & 10.00 \(\pm\) 0.059 a & 9.23 \(\pm\) 0.222 b & 5.95 \(\pm\) 0.100 d & 6.48 \(\pm\) 0.177 c & 123-66-0 & 984 \\
26 & 21.65 & 2.2-dimethyl-Decane & - & 3.21 \(\pm\) 0.272 a & 2.71 \(\pm\) 0.021 b & 1.63 \(\pm\) 0.036 c & 17302-37-3 & 1130 \\
27 & 22.28 & 1-methyl-4-(methyl)ethylidene) & - & - & - & 586-62-9 & 1052 \\
28 & 22.4 & o-Cymene & 2.26 \(\pm\) 0.256 b & 2.98 \(\pm\) 0.135 a & 2.06 \(\pm\) 0.095 b & 2.04 \(\pm\) 0.025 b & 527-84-4 & 1042 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: The variety and concentration of the volatile compounds in grape juice under different sterilization treatments.