Table 3.
Microbial VOCs of T203, O.Y. 1607, and O.Y. 3807 isolates detected by HS-SPME-GC-MS in culture grown for 3 days on PDAa
| Volatile metabolite | RI | Peak area (%) of HSb |
|||
|---|---|---|---|---|---|
| T203 | O.Y. 1607 | O.Y. 3807 | |||
| Ethanol | 522 | 29 | 37 | 4 | |
| Isobutanol | 575 | 1.2 | 2.3 | ND | |
| Ethylacetate | 675 | 0.8 | 1.3 | ND | |
| Isopentanol | 699 | 2.6 | 2.9 | 0.7 | |
| 2-Methyl-1-butanol | 787 | 2.34 | 4.4 | 0.54 | |
| β-Phellandrene | 1,081 | ND | ND | 0.6 | |
| Phenylethyl alchol | 1,228 | 5.9 | 11.6 | 1 | |
| p-Methoxystyrene | 1,236 | 2.4 | 3.5 | 0.7 | |
| Phenylacetic acid ethyl ester | 1,325 | 0.35 | 0.5 | ND | |
| 2-Phenylethylacetate | 1,342 | 0.76 | 1.12 | ND | |
| 2-Undecanone | 1,351 | 0.35 | 0.5 | 0.2 | |
| 2-Acetoxyalkane | 1,455 | 1.43 | 1.54 | ND | |
| β-Farnesene | 1,482 | ND | ND | 0.26 | |
| α-Bergamotene | 1,496 | 2.43 | 6.0 | 3.7 | |
| α-Langipinene | 1,534 | 2.1 | 2.45 | ND | |
| Curcumene | 1,543 | ND | 2.15 | ND | |
| Zingiberene | 1,548 | 18.3 | 6.8 | 0.56 | |
| β-Himachalene | 1,555 | 2.50 | 3.3 | 0.35 | |
| β-Bisabolene | 1,562 | 1.95 | 2.16 | 0.37 | |
| β-Sesquiphellandrene | 1,590 | 25.4 | 10.3 | 1.8 | |
| 6-Pentyl-pyran-2-one | 1,623 | ND | ND | 85.2 | |
a
The retention index (RI) was calculated according to the retention index guide (http://massfinder.com/wiki/Retention_index_guide) using an alkaline standard solution (C8-C20) as the reference.
b
Results are listed as peak area (%) of the headspace. Peak areas of individual compounds were calculated as percentage of the total area of the compounds appearing on the chromatogram and identified using a reference (NIST/EPA/NIH) mass spectral library. ND, not detected.