## 3 Results
### Composition of VOCs
\begin{table}
\begin{tabular}{r r r r r r r r r} \hline \hline  & **3** & **26** & **34** & **35** & **50** & **62** & **146** & **2-18** & **2-60** \\ \cline{2-10}
**VOCs** & & & & & (\(\times\)**10\({}^{8}\) Ab \(\times\) s)** & & & \\ \hline
2-Nonanone & & 0.48 & 0.40 & 0.71 & 0.87 & 0.40 & \\
2-Octanone & & & 0.26 & 0.45 & & & \\
2-Pentadecanone & & & 0.14 & & & & \\
2-Pentanone & & & 0.13 & 0.55 & & & \\
3-methyl-2-Pentanone & & & & & & 3.28 & \\
2-Tetradecanone & & & 0.19 & 0.89 & 1.88 & \\
2-Tridecanone & & & & & 0.26 & & \\
2-Undecanone & & 0.62 & 0.55 & 1.18 & & & \\
3-Dodecanone & & & & & 0.20 & & \\
7-phenyl-3-Heptene & & & & & & \\
5-methyl-3-Hexanone & & & & & 0.90 & & 0.57 \\
3-Pentadecanone & & & & & 0.65 & & \\
3-Pentanone & & & & & 0.44 & & \\
3-Tridecanone & & & & & & 0.52 & 0.12 \\
5-methyl-4-Hexen-3-one & & & & & & 0.90 \\
6,10,14-trimethyl-5,9,13-Pentadecatrien-2-one & & & & & & 0.16 & \\
6-methyl-5-Hepten-2-one & & & & & & & 0.15 \\
6-tert-Butyl-2,4-dimethylphenol & & 0.52 & 0.95 & & & & \\
7-Methyloctane,2-4-dine,enol form & & & & & & 0.24 & \\ Acetic acid, 2-phenylethyl ester & & 0.31 & & & & & \\ Acetic acid,chloro-, hexadecyl ester & & 0.29 & & & & & \\ Acetic acid, non-3-enyl ester, cis- & & & & & & & \\ (2-methoxyethyl)-Benzene & 1.43 & & & & & & \\ (methoxyethyl)-Benzene & 1.35 & & & & & & & \\ Benzenaceae acid, ethyl ester & & & & & & & 0.41 \\ Benzoi acid, ethyl ester & & & & & 1.74 & & & \\ Benzyl alcohol & & & & & & 1.59 & 0.44 & \\ Benzyl methyl ketone & 0.14 & & & & & 0.79 & 0.13 & 0.52 & 0.11 \\
1-methoxy-3-methyl-Butane & 9.96 & & & & & & & \\
2-methyl-2-(methylthio)-Butane & & & & & 0.63 & & & \\ Butanethioic acid, S-methyl ester & & & & & & & 0.74 \\ Butanacio acid, 1-phenylhexyl ester & & & & & & & \\
3-methyl-Butanoic acid & & & 0.45 & 1.87 & & & & \\ Butanoic acid, 3-methyl-, ethyl ester & & & & & & & 0.12 & \\ cis-Bicyclo [3.3.0]oct-2-ene & & & & & & & & 0.83 \\ Cyclobheptene & & & & & & & & \\
1-methyl-Cyclohexene & & & & & & & 0.24 & & \\
3-ethyl-Cyclopentene & & & & & & & & 0.17 \\ Discyclopentadiene & & & & 0.16 & 0.24 & 0.14 & 0.20 & 0.29 & 0.18 \\ Dimethyl trisulfide & 0.32 & & & 0.20 & 0.19 & 1.98 & 1.67 & 1.96 & 0.87 \\ Disulfide dimethyl & 18.7 & 1.18 & 1.33 & 2.23 & 16.1 & 3.13 & 9.98 & 0.21 \\ Dodecanoic acid, ethyl ester & & & & & & & & 0.14 \\
1-(2-aminophenyl)-Ethanone & & & & & & & & \\ Ethyl 13-methyl-tetradacanoate & & & & & & & 0.23 & \\ Ethyl 3-(methylthio)-(E)-2-propenoate & & & & & & & & \\ Ethyl 3-(methylthio)-(Z)-2-propenoate & & & & & & & & \\ Ethyl 1 ridescanate & & & & & & & & \\ Methyl Isobutyl Ketone & & & & & & 0.26 & & \\ Methyl isovalerate & & & & & & & & \\ Methyl ihiolactone & 2.62 & & & & & & & \\ dechydrohydro-Naphthalene & & & & & & & & \\ Octadecan & & & & & & & & \\ Phenylethyl Alcohol & & 1.69 & 1.63 & 0.15 & 0.57 & & & \\ Propanoic acid, 2-phenylethyl ester & & & & 0.15 & & & & \\ Pyrazine, 2-ethyl-5-methyl- & & & & & & & & \\ trimethyl-Pyrazine & & & & & 0.50 & & & \\ Pyrrole & & & & & & & & \\ S-Methyl 3-methylbutanetihoate & 0.17 & & & 3.70 & 0.34 & 0.15 & 3.72 \\ TATP & & & & & & & 0.54 & \\ Tetradecanoic acid, ethyl ester & & & & & & & 0.64 \\
2-methoxy-5-methyl-Thiophene & & & & & & & & 0.35 & \\ Undecanoic acid, ethyl ester & & & & & & & & 0.24 \\ \hline \hline \end{tabular}
\end{table} 
Table 1: \(Cont.\)three unique to No. 3. One compound was released by eight strains, one compound was released by seven strains, five compounds were released by six strains, three compounds were released by five strains, three compounds were released by four strains, seven types of compounds were released by three strains, and 12 compounds were released by two strains (Figure 2).