Table 3.
Emitted bacterial VOCs determined by thermal desorption GC/MS of 2 L headspace samples
| No. | Rt GC (min) | Compound | E. cloacae | E. coli | K. pneumoniae | P. mirabilis | P. aeruginosa | S. marcescens | S. aureus | S. epidermidis | S. agalactiae | S. pneumoniae |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DSM 30054 | DSM 1103 | DSM 2026 | DSM 4479 | DSM 46358 | DSM 50904 | DSM 13661 | DSM 18857 | DSM 2134 | DSM 11967 | |||
| 1* | 7.01 | 3-Methylbutanal | X | X | X | X | X | X | X | X | ||
| 2* | 8.48 | 3-Methyl-1-butanol | XX | XX | X | X | XX | X | ||||
| 3* | 8.77 | Dimethyldisulfide | X | X | XX | X | X | |||||
| 4* | 9.48 | 3-Methyl-2-buten-1-ol | X | |||||||||
| 5* | 9.73 | 3-Methyl-2-butenal | X | |||||||||
| 6* | 10.66 | Methylpyrazine | X | |||||||||
| 7* | 10.95 | 2,3-Heptanedione | X | |||||||||
| 8* | 11.57 | 2-(Methylthio)-ethanol | X | |||||||||
| 9* | 12.80 | 2-(Methylthio)-ethanol | X | X | X | X | X | X | X | |||
| 10* | 14.41 | Phenol | X | X | X | |||||||
| 11* | 14.47 | Dimethyl trisulfide | X | X | X | |||||||
| 12* | 14.74 | Benzonitrile | X | X | X | X | X | X | X | |||
| 13* | 14.75 | 2-Octanone | X | |||||||||
| 14* | 15.09 | 2,3,5-Trimethylpyrazine | X | X | X | |||||||
| 15* | 15.25 | 3-Methylbutyl 2-methylpropanoate | X | |||||||||
| 16* | 15.55 | 2-Acetylthiazole | X | |||||||||
| 17* | 15.57 | 1-Methoxy-4-methylbenzene | X | |||||||||
| 18* | 15.98 | 3-Methyl-N-(3-methylbutylidene)-1-butanamine | X | |||||||||
| 19* | 16.19 | N-(Phenylmethylene)-methanamine | X | |||||||||
| 20* | 17.08 | 1-Undecene | X | |||||||||
| 21* | 17.10 | 2-Nonanone | X | X | X | X | X | X | ||||
| 22* | 17.33 | Methyl benzoate | X | |||||||||
| 23* | 17.72 | Phenethyl alcohol | X | X | ||||||||
| 24* | 17.81 | N,N′-Dibenzylideneethylenediamine | X | |||||||||
| 25* | 18,32 | Benzyl nitrile | X | X | X | |||||||
| 26* | 19.01 | Benzyl methyl sulfide | X | |||||||||
| 27* | 19.31 | 2-Decanone | X | X | X | |||||||
| 28* | 19.89 | N-(Phenylmethylene)-1-propanamine | X | |||||||||
| 29* | 20.50 | Ethyl phenylacetate | X | |||||||||
| 30* | 20.78 | 2-Phenyl ethyl acetate | X | X | ||||||||
| 31* | 21.03 | N-(Phenylmethylene)-1-butanamine | X | X | ||||||||
| 32* | 21.20 | N-Butyl-benzenamine | X | |||||||||
| 33* | 21.42 | 2-Undecanone | X | X | X | X | ||||||
| 34* | 21.62 | Indole | XX | |||||||||
| 35* | 21.75 | S-Methyl thiobenzoate | X | |||||||||
| 36* | 21.79 | 1-Methyl-naphthalene | X | X | ||||||||
| 37* | 21.94 | 2-(3-Methylbutyl)-3,5-dimethylpyrazine | X | X | X | X | ||||||
| 38* | 22.21 | 2-Methyl-naphthalene | X | X | ||||||||
| 39* | 22.45 | Phenylacetic acid propylester | X | |||||||||
| 40* | 23.22 | 3-Methyl-N-(2-phenylethylidene)-1-butanamine | X | |||||||||
| 41* | 23.49 | p-Pentylaniline | X | |||||||||
| 42* | 23.51 | 3-Methyl-1H-indole | X | |||||||||
| 43* | 23.53 | Phenylethyl butyrate | X | X | ||||||||
| 44* | 24.34 | Isoamyl benzoate | X | |||||||||
| 45* | 26.18 | 4-Chloro-1H-indole | X | |||||||||
| 46* | 26.66 | N-(1,1-Dimethylethyl)-benzamide | X | |||||||||
| 47* | 27.59 | N-n-Butylphthalimide | X | |||||||||
| No. of VOCs | 14 | 22 | 4 | 24 | 7 | 11 | 3 | 2 | 11 | 4 | ||
An X indicates the detection of a compound, whereas XX indicates compounds occurring in high amounts