Table 2 Chemical composition of VOC produced by P. gingivalis in the oral cavity of the rats detected using GCMS
| No. | Retention time | CAS no | Name | Structure | Classification | Proportion of odor (%)a |
|---|---|---|---|---|---|---|
| 1 | 1.3 | 7664-41-7 | Ammonia |
| Nitrogen compounds (C) | 12 |
| 2 | 1.8 | 926-65-8 | 2-(Vinyloxy)propane |
| Alkanes (E) | 12 |
| 3 | 2.5 | 64-19-7 | Acetic acid |
| Carboxylic acids (A4-1) | 12 |
| 4 | 4.3 | 100-50-5 | Cyclohex-3-ene-1-carbaldehyde |
| Aldehydes (A2-1) | 1 |
| 5 | 5.3 | 71-41-0 | Pentanol |
| Alcohols (A1-1) | 5 |
| 6 | 6.4 | 66-25-1 | Hexanal |
| Aldehydes (A2-2) | 12 |
| 7 | 8.1 | 35298-48-7 | Dimethylfuranone |
| Ketones (A3-1) | 12 |
| 8 | 9-10 | 111-27-3 | n-Hexanol |
| Alcohols (A1-2 | 6 |
| 9 | 14.3 | 3391-86-4 | 1-Octen-3-ol |
| Alcohols (A1-3) | 1 |
| 10 | 14.6 | 110-93-0 | Methyl isohexenyl ketone |
| Ketones (A3-2) | 1 |
| 11 | 15.2 | 124-13-0 | Octyl aldehyde |
| Aldehydes (A2-3) | 1 |
| 12 | 15.5 | 142-62-1 | Hexanoic acid |
| Carboxylic acids (A4-2) | 12 |
| 13 | 16.4 | 104-76-7 | Isooctyl alcohol |
| Alcohols (A1-4) | 6 |
| 14 | 17.3 | 695-06-7 | gamma-hexalactone |
| Esters (A5-1) | 1 |
| 15 | 17.4 | 2548-87-0 | trans-2-Octen-1-al |
| Aldehydes (A2-4) | 1 |
| 16 | 19.3 | 30434-65-2 | 3,4,4-Trimethylcyclopent-2-en-1-one |
| Ketones (A3-3) | 1 |
| 17 | 23.1 | 112-31-2 | Decyl aldehyde |
| Aldehydes (A2-5) | 1 |
| 18 | 25.4 | 927-49-1 | 6-Undecanone |
| Ketones (A3-4) | 1 |
| 19 | 26 | 540-07-8 | Amyl caproate |
| Esters (A5-2) | 1 |
| 20 | 28 | 6064-27-3 | Dodecan-6-one |
| Ketones (A3-5) | 1 |