## 3 Results
### Volatile Organic Compounds Produced by Bacillus Bacteria and F. oxysporum
#### 3.2.1 Volatile Organic Compounds Produced by _Bacillus_ Bacteria
\begin{table}
\begin{tabular}{l c c c c} \hline \hline \multirow{2}{*}{**Group of Compounds**} & \multirow{2}{*}{\(\mathbf{R}L_{\text{rep.}}\)} & \multicolumn{3}{c}{**Relative Content [\% TCI]**} \\  & & **I** & **II** & **III** \\ \hline
**Carbonyl compounds**, & & **46.83 \(\pm\) 8.41** & **41.50 \(\pm\) 6.45** & **34.62 \(\pm\) 4.77** \\   including the following: & & & \\ \hline Acetone & 480 & 6.92 \(\pm\) 1.54 & 10.14 \(\pm\) 0.52 & 8.70 \(\pm\) 1.31 \\ Butan-2-one & 560 & 0.64 \(\pm\) 0.19 & 1.01 \(\pm\) 0.06 & 2.88 \(\pm\) 0.49 \\
1-Hydroxyprogan-2-one & 661 & - & 0.46 \(\pm\) 0.10 & - \\ Pentan-2-one & 671 & 1.08 \(\pm\) 0.27 & 0.56 \(\pm\) 0.05 & 0.60 \(\pm\) 0.08 \\
3-Hydroxybutan-2-one & 706 & 3.12 \(\pm\) 0.72 & - & - \\
3-Methylberman-2-one & 743 & - & - & 1.26 \(\pm\) 0.22 \\
5-Methylbexam-2-one & 851 & 1.49 \(\pm\) 0.16 & 1.89 \(\pm\) 0.33 & 1.87 \(\pm\) 0.31 \\ Heptera-2-one & 886 & 14.13 \(\pm\) 2.01 & 8.43 \(\pm\) 1.43 & 9.54 \(\pm\) 0.91 \\
6-Methylbemt-2-one & 951 & 2.88 \(\pm\) 0.71 & 3.22 \(\pm\) 0.98 & 3.25 \(\pm\) 0.51 \\ Benzaldehyde & 957 & - & 0.97 \(\pm\) 0.14 & 0.78 \(\pm\) 0.09 \\
5-Methylbemt-2-one & 961 & 3.33 \(\pm\) 0.61 & 6.99 \(\pm\) 1.62 & 1.40 \(\pm\) 0.38 \\ Nonan-5-one & 1054 & 1.10 \(\pm\) 0.14 & 1.35 \(\pm\) 0.13 & 0.71 \(\pm\) 0.12 \\ Acetophenone & 1065 & 1.22 \(\pm\) 0.11 & 1.61 \(\pm\) 0.08 & 1.87 \(\pm\) 0.15 \\ Nonan-2-one & 1092 & 1.84 \(\pm\) 0.31 & 1.17 \(\pm\) 0.14 & 0.59 \(\pm\) 0.07 \\ Decan-5-one & 1163 & 0.93 \(\pm\) 0.16 & 0.79 \(\pm\) 0.19 & - \\ Undecan-2-one & 1295 & 1.05 \(\pm\) 0.14 & - & - \\ Dodecan-5-one & 1359 & 1.00 \(\pm\) 0.17 & - & - \\
2-Methyldecananl & 1366 & 1.15 \(\pm\) 0.15 & 0.69 \(\pm\) 0.11 & - \\
4-Acetyl-1-methylcyclohexene & 1145 & 2.87 \(\pm\) 0.55 & 1.17 \(\pm\) 0.27 & 0.53 \(\pm\) 0.07 \\ Tridecan-2-one & 1498 & 1.13 \(\pm\) 0.30 & 1.04 \(\pm\) 0.30 & - \\ Tetradecan-5-one & 1569 & 0.95 \(\pm\) 0.16 & - & - \\ Pentadecan-2-one & 1700 & - & - & 0.64 \(\pm\) 0.05 \\ \hline
**Alcohols**, & & & **4.58 \(\pm\) 0.68** & **6.69 \(\pm\) 1.27** & **3.44 \(\pm\) 0.56** \\   including the following: & & & & \\ \hline
3-Methylburnat-1-ol & 725 & - & 0.63 \(\pm\) 0.06 & 0.45 \(\pm\) 0.04 \\ Heptera-2 ol & 896 & 2.51 \(\pm\) 0.39 & 2.63 \(\pm\) 0.53 & 2.99 \(\pm\) 0.52 \\
5-Methyl-2-heptanol & 968 & - & - & 1.28 \(\pm\) 0.33 & - \\ Nonan-2-ol & 1100 & 1.41 \(\pm\) 0.20 & 1.03 \(\pm\) 0.21 & - \\ Phenethyl alcohol & 1114 & 0.66 \(\pm\) 0.09 & 1.12 \(\pm\) 0.15 & - \\ \hline
**Alkanes**, & & & **0.78 \(\pm\) 0.20** & **1.49 \(\pm\) 0.26** & - \\   including the following: & & & & \\ \hline n-Hexadecane & 1600 & - & 0.71 \(\pm\) 0.09 & - \\ n-Heptadecan & 1700 & 0.78 \(\pm\) 0.20 & 0.78 \(\pm\) 0.17 & - \\ \hline
**Pyrazine derivatives**, & & & & \\ including the following: & & & **32.76 \(\pm\) 3.82** & **40.46 \(\pm\) 3.38** & **48.98 \(\pm\) 4.37** \\ \hline
2-Methylbyrazine & 818 & 1.42 \(\pm\) 0.22 & 2.42 \(\pm\) 0.27 & 1.71 \(\pm\) 0.06 \\
2-5-Dimethylbyrazine & 906 & 2.39 \(\pm\) 2.03 & 30.92 \(\pm\) 1.74 & 34.17 \(\pm\) 3.37 \\
2,3-Trimethylbyrazine & 998 & 6.96 \(\pm\) 1.51 & 6.58 \(\pm\) 1.25 & 11.09 \(\pm\) 0.81 \\
2-Methyl-3-isopropylpyrazine & 1051 & 0.44 \(\pm\) 0.06 & 0.54 \(\pm\) 0.12 & - \\
2-5 Dimethyl3-3-ethylbyrazine & 1078 & - & - & 2.01 \(\pm\) 0.13 \\ \hline
**Amaides**, & & & & \\ including the following: & & - & & **3.54 \(\pm\) 0.13** \\ \hline Acetamide & 771 & - & - & 3.18 \(\pm\) 0.11 \\ Propomanamide & 855 & - & - & 0.37 \(\pm\) 0.02 \\ \hline
**Sulfides**, & & & **0.73 \(\pm\) 0.14** & **3.73 \(\pm\) 0.26** \\   including the following: & & & & \\ \hline
1,2-Dimethylsolide & 735 & - & - & 2.69 \(\pm\) 0.11 \\ Dimethyl trisulfide & 965 & - & 0.73 \(\pm\) 0.14 & 1.04 \(\pm\) 0.16 \\ \hline
**Monotergenes**, & & **3.12 \(\pm\) 0.47** & **3.81 \(\pm\) 0.66** & **2.99 \(\pm\) 0.21** \\ \hline \(\lambda\)-Pinene & 930 & 0.80 \(\pm\) 0.04 & 1.15 \(\pm\) 0.20 & 1.09 \(\pm\) 0.06 \\ \(\lambda\)-3 Carene & 1007 & 1.68 \(\pm\) 0.28 & 1.89 \(\pm\) 0.34 & 1.90 \(\pm\) 0.15 \\ Limonene & 1027 & 0.65 \(\pm\) 0.16 & 0.77 \(\pm\) 0.11 & - \\ \hline
**Other compounds**, & & & **9.51 \(\pm\) 1.39** & **4.35 \(\pm\) 0.69** & **0.78 \(\pm\) 0.13** \\ \hline Methyl N-hydroxybenzecarboximidoate & 903 & 3.66 \(\pm\) 0.53 & 3.15 \(\pm\) 0.35 & - \\ Phenolic compound (C\({}_{\text{H}}\)Li\({}_{\text{O}}\)) & 1260 & 3.92 \(\pm\) 0.72 & 1.20 \(\pm\) 0.34 & 0.78 \(\pm\) 0.13 \\ Phenolic compound (C\({}_{\text{H}}\)Li\({}_{\text{O}}\)) & 1264 & 1.92 \(\pm\) 0.14 & - & - \\ \hline
**Unidentified compounds**, & & & **2.42 \(\pm\) 0.37** & **0.97 \(\pm\) 0.16** & **1.91 \(\pm\) 0.29** \\ \hline NN & 1118