## 3 Results and Discussion
### Volatile Compounds
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline  & **Control** & **NITRASC** & **0.5\%Pomace** & **3\%Pomace** & \(\mathbf{p}\) \\ \hline _Alcohols_ & & & & & \\ Ethanol & 47.1 \(\pm\) 29.8 & 47.9 \(\pm\) 35.2 & 39.7 \(\pm\) 26.2 & 71.2 \(\pm\) 22.8 & 0.371 \\
2-Methylluirrene & 536.4 \(\pm\) 269.5 & 586.4 \(\pm\) 289.7 & 655.7 \(\pm\) 122 & 928.1 \(\pm\) 276.5 & 0.100 \\
3-Methylbutan-1-ol & 31.8 \(\pm\) 19.2 & 75.6 \(\pm\) 113.1 & 35.2 \(\pm\) 19.5 & 39.0 \(\pm\) 26.6 & 0.636 \\ Butane-2,3-diol & 430.3 \(\pm\) 153.4 b & 111.0 \(\pm\) 88.9 b & 468.7 \(\pm\) 49.2 b & 1048.1 \(\pm\) 358.2 a & \textless{}0.001 \\
1-Octen-3-ol & 8.7 \(\pm\) 2.5 & 7.6 \(\pm\) 16.9 & 13.3 \(\pm\) 16.3 & 9.2 \(\pm\) 3.1 & 0.883 \\ Phenylmethanol & 37.0 \(\pm\) 21.6 & 32.0 \(\pm\) 29.3 & 11.3 \(\pm\) 15.9 & 29.1 \(\pm\) 9.9 & 0.255 \\ _Aldehydes_ & & & & & \\ Hexanal & 225.5 \(\pm\) 138.6 bc & 75.8 \(\pm\) 44.0 c & 298.8 \(\pm\) 100.7 b & 650.0 \(\pm\) 101.3 a & \textless{}0.001 \\
2-Phenylacetaldehyde & 30.4 \(\pm\) 6.3 a & 2.2 \(\pm\) 4.9 b & 37.4 \(\pm\) 12.1 a & 25.4 \(\pm\) 8.2 a & \textless{}0.001 \\ Nonanal & 26.5 \(\pm\) 10.1 b & 56.0 \(\pm\) 21.6 a & 44.3 \(\pm\) 4.0 ab & 46.9 \(\pm\) 11.9 ab & 0.022 \\ _Sulfur-containing compounds_ & & & & & \\ Sulfide, allyl methyl & 275.1 \(\pm\) 39.6 & 203.5 \(\pm\) 108.1 & 236.5 \(\pm\) 65.2 & 276.4 \(\pm\) 48.5 & 0.333 \\ Dially sulfide & 433.2 \(\pm\) 110.1 & 290.6 \(\pm\) 64.5 & 345.2 \(\pm\) 158.1 & 352.1 \(\pm\) 159.4 & 0.403 \\ Disulfide, methyl 2-propenyl & 290.4 \(\pm\) 34.1 & 385.3 \(\pm\) 106.6 & 302.3 \(\pm\) 82.4 & 401.4 \(\pm\) 36.3 & 0.056 \\ Dially disulfide & 1069.5 \(\pm\) 187.8 & 1060.7 \(\pm\) 292.0 & 1210.6 \(\pm\) 272.8 & 1429.2 \(\pm\) 161.9 & 0.082 \\ Diallyl trisulfide & 6.8 \(\pm\) 1.8 & 7.7 \(\pm\) 3.4 & 9.1 \(\pm\) 6.9 & 9.7 \(\pm\) 6.0 & 0.790 \\ _Terpenes_ & & & & & \\ \(\delta\)-Phenyladrene & 38.8 \(\pm\) 18.3 & 29.9 \(\pm\) 4.6 & 23.0 \(\pm\) 5.1 & 29.1 \(\pm\) 9.4 & 0.187 \\ \(\alpha\)-Pinene & 544.6 \(\pm\) 90.6 & 588.4 \(\pm\) 300.4 & 565.6 \(\pm\) 90.9 & 676.5 \(\pm\) 138.5 & 0.666 \\ Camphene & 33.0 \(\pm\) 6.4 & 42.0 \(\pm\) 12.1 & 32.8 \(\pm\) 4.7 & 39.7 \(\pm\) 8.5 & 0.238 \\ \(\beta\)-Pinene & 717.6 \(\pm\) 120.4 & 913.1 \(\pm\) 227.8 & 738.6 \(\pm\) 92.6 & 883.8 \(\pm\) 171.2 & 0.171 \\ Myrcene & 222.6 \(\pm\) 118.2 & 326.3 \(\pm\) 77.9 & 230.4 \(\pm\) 133.2 & 336.7 \(\pm\) 54.4 & 0.185 \\ \(\alpha\)-Fellandrene & 334.5 \(\pm\) 70.2 & 298.8 \(\pm\) 79.8 & 351.9 \(\pm\) 61.3 & 439.4 \(\pm\) 72.3 & 0.039 \\ \(\beta\)-Carene & 2069.4 \(\pm\) 354.2 & 2593.2 \(\pm\) 636.6 & 2119.5 \(\pm\) 178.1 & 2571.2 \(\pm\) 406.7 & 0.129 \\ \(\alpha\)-Terpinene & 411.1 \(\pm\) 7.8 & 36.8 \(\pm\) 10.8 & 36.0 \(\pm\) 6.6 & 47.6 \(\pm\) 7.6 & 0.152 \\ Limonene & 1408.2 \(\pm\) 260.8 & 1704.6 \(\pm\) 398.2 & 1430.7 \(\pm\) 177.1 & 1707.7 \(\pm\) 224.5 & 0.191 \\ \(\beta\)-Terpinene & 3.5 \(\pm\) 3.9 & 3.0 \(\pm\) 1.9 & 3.1 \(\pm\) 1.7 & 3.4 \(\pm\) 2.0 & 0.989 \\ \(\gamma\)-Terpinene & 15.5 \(\pm\) 11.4 & 17.4 \(\pm\) 4.0 & 14.6 \(\pm\) 2.1 & 17.6 \(\pm\) 2.8 & 0.853 \\ \(\alpha\)-Terpinolene & 25.4 \(\pm\) 5.3 & 31.8 \(\pm\) 7.9 & 27.9 \(\pm\) 3.3 & 32.7 \(\pm\) 3.5 & 0.145 \\ \(\beta\)-Terpinolene & 55.6 \(\pm\) 12.3 & 73.0 \(\pm\) 20.2 & 59.2 \(\pm\) 8.0 & 71.7 \(\pm\) 8.7 & 0.127 \\ \(\delta\)-Elemene & 15.3 \(\pm\) 3.9 & 19.8 \(\pm\) 4.2 & 17.0 \(\pm\) 4.0 & 20.4 \(\pm\) 1.5 & 0.129 \\ \(\alpha\)-Copane & 21.9 \(\pm\) 4.7 & 27.7 \(\pm\) 5.5 & 23.5 \(\pm\) 4.0 & 28.9 \(\pm\) 2.4 & 0.064 \\ \(\beta\)-Caryophyllene & 138.3 \(\pm\) 29.9 & 178.6 \(\pm\) 34.4 & 153.1 \(\pm\) 28.5 & 180.1 \(\pm\) 16.8 & 0.087 \\ \(\alpha\)-Caryophyllene & 6.1 \(\pm\) 1.4 ab & 8.0 \(\pm\) 1.5 a & 5.7 \(\pm\) 1.3 b & 8.2 \(\pm\) 0.8 a & 0.010 \\ _Others_ & & & & & \\ Pentane & 126.4 \(\pm\) 54.7 & 147.2 \(\pm\) 89.2 & 145.0 \(\pm\) 34.6 & 134.2 \(\pm\) 75.5 & 0.956 \\
3-Hydroxybutan-2-one & 240.3 \(\pm\) 68.5 ab & 101.6 \(\pm\) 102.5 b & 386.0 \(\pm\) 149.3 a & 218.5 \(\pm\) 76.2 ab & 0.005 \\ o-Cymene & 279.3 \(\pm\) 55.7 & 284.8 \(\pm\) 153 Seven of the thirty-four volatile compounds were significantly different between the four groups (Table 5): 3-hydroxybutan-2-one, 2,3-butanediol, hexanal, \(\alpha\)-fellandrene, 2-phenylacetaldehyde, nonanal, and \(\alpha\)-caryophyllene.