Table 1.
GC–MS analysis of volatile components in the essential oil of ZJP, WZP, and XHP.
| No. | Compounds | RT(min) | CAS | Formula | Molecular weight | Major ions | Relative amount (%) |
Class | ||
|---|---|---|---|---|---|---|---|---|---|---|
| WZP | ZJP | XHP | ||||||||
| 1 | L-(−)-α-pinene | 4.801 | 7785-26-4 | C10H16O | 152.233 | 93, 91, 92, 77 | 1.24 ± 0.01 | 0.58 ± 0.01 | 1.81 ± 0.03 | Hydrocarbons |
| 2 | α-thujene | 4.911 | 2867-05-2 | C10H16 | 136.234 | 93, 91, 77, 92 | 0.24 ± 0.21 | ND | 0.51 ± 0.03 | Hydrocarbons |
| 3 | Camphene | 5.644 | 79–92-5 | C10H16 | 136.234 | 93, 121, 79, 91 | 0.06 ± 0.01 | ND | ND | Hydrocarbons |
| 4 | β-Pinene | 6.474 | 127–91-3 | C10H16 | 136.234 | 93, 69, 91, 41 | 0.77 ± 0.01 | 0.42 ± 0.00 | 1.13 ± 0.02 | Hydrocarbons |
| 5 | β-Phellandrene | 6.761 | 555–10-2 | C10H16 | 136.234 | 93, 91, 77, 79 | 0.16 ± 0.01 | 0.10 ± 0.01 | 0.09 ± 0.01 | Hydrocarbons |
| 6 | β-Myrcene | 7.641 | 123–35-3 | C10H16 | 136.234 | 93, 69, 41, 91 | 2.60 ± 0.17 | 1.87 ± 0.04 | 2.37 ± 0.08 | Hydrocarbons |
| 7 | α-terpinene | 7.909 | 99–86-5 | C10H16 | 136.234 | 121, 93, 136, 91, 77 | 0.28 ± 0.02 | ND | ND | Hydrocarbons |
| 8 | 4-Carene | 7.909 | 29,050–33-7 | C10H16 | 136.234 | 121, 93, 136, 91, 76 | ND | 0.27 ± 0.02 | 0.38 ± 0.03 | Hydrocarbons |
| 9 | d-Limonene | 8.379 | 5989-27-5 | C10H16 | 136.234 | 93, 68, 67, 79 | 77.34 ± 1.34 | 70.92 ± 1.30 | 66.79 ± 0.68 | Hydrocarbons |
| 10 | γ-Terpinene | 9.088 | 99–85-4 | C10H16 | 136.234 | 93, 91, 136, 77 | 7.25 ± 0.32 | 9.61 ± 0.45 | 15.09 ± 0.31 | Hydrocarbons |
| 11 | o-Cymene | 9.436 | 527–84-4 | C10H14 | 134.218 | 119, 134, 91, 117 | 1.54 ± 0.08 | 1.04 ± 0.07 | 3.01 ± 0.03 | Hydrocarbons |
| 12 | Terpinolene | 9.68 | 586–62-9 | C10H16 | 136.234 | 121, 93, 136, 91, 79 | 0.71 ± 0.06 | 0.91 ± 0.08 | 1.00 ± 0.06 | Hydrocarbons |
| 13 | 3-Methyl-2-buten-1-ol | 10.016 | 556–82-1 | C5H10O | 86.132 | 71, 41, 43, 53 | ND | ND | 0.02 ± 0.03 | Alcohols |
| 14 | p-1,3,8-menthatriene | 11.444 | 18,368–95-1 | C10H14 | 134.218 | 57, 41, 119, 91 | ND | 0.04 ± 0.06 | ND | Hydrocarbons |
| 15 | p-Mentha-1,5,8-triene | 11.963 | 21,195–59-5 | C10H14 | 134.218 | 91, 134, 119, 117 | ND | 0.01 ± 0.01 | ND | Hydrocarbons |
| 16 | 2-p-Tolyl-1-propene | 12.098 | 1195-32-0 | C10H12 | 132.202 | 132, 117, 115, 91 | 0.05 ± 0.01 | 0.04 ± 0.01 | 0.01 ± 0.01 | Hydrocarbons |
| 17 | 1,2-diethylbenzene | 12.177 | 135–01-3 | C10H14 | 134.218 | 91, 119, 134, 105 | ND | 0.01 ± 0.02 | ND | Hydrocarbons |
| 18 | trans-limonene oxide | 12.47 | 4959-35-7 | C10H16O | 152.233 | 43, 67, 94, 108 | ND | 0.07 ± 0.02 | ND | pyrans |
| 19 | (R)-(+)-citronellal | 12.812 | 2385-77-5 | C10H18O | 154.249 | 69, 41, 95, 55 | 0.08 ± 0.01 | 0.24 ± 0.02 | ND | aldehydes |
| 20 | (+)-2-Carene | 12.91 | 4497-92-1 | C10H16 | 136.234 | 121, 93, 136, 161, 91 | ND | 0.09 ± 0.01 | ND | Hydrocarbons |
| 21 | Δ-elemene | 12.916 | 20,307–84-0 | C15H24 | 204.35 | 121, 93, 136, 91, 161 | 0.09 ± 0.01 | ND | ND | Hydrocarbons |
| 22 | Decanal | 13.185 | 112–31-2 | C10H20O | 156.265 | 57, 41, 43, 55 | 0.16 ± 0.02 | 0.66 ± 0.06 | 0.14 ± 0.02 | aldehydes |
| 23 | α-Cubebene | 13.356 | 17,699–14-8 | C15H24 | 204.351 | 119, 105, 161, 93 | ND | 0.20 ± 0.02 | ND | Hydrocarbons |
| 24 | Linalool | 13.783 | 78–70-6 | C10H18O | 154.249 | 71, 93, 43, 55 | 0.79 ± 0.03 | 1.43 ± 0.11 | 0.10 ± 0.00 | Alcohols |
| 25 | 1-Octanol | 13.923 | 111–87-5 | C8H18O | 130.228 | 56, 55, 41, 69 | ND | 0.15 ± 0.01 | ND | Alcohols |
| 26 | Germacrene D | 14.039 | 23,986–74-5 | C15H24 | 204.35 | 161, 105, 91, 119 | ND | 0.07 ± 0.07 | ND | Hydrocarbons |
| 27 | β-ylangene | 14.638 | 20,479–06-5 | C15H24 | 204.35 | 161, 120, 91, 149 | ND | 0.09 ± 0.01 | ND | Hydrocarbons |
| 28 | 2-Isopropyl-5-methylanisole | 14.644 | 1076-56-8 | C11H16O | 164.244 | 149, 164, 91, 117 | ND | ND | 0.02 ± 0.02 | Phenols |
| 29 | 4-terpineol | 14.748 | 562–74-3 | C10H18O | 154.249 | 71, 111, 93, 43 | 0.29 ± 0.02 | 0.33 ± 0.03 | 0.29 ± 0.03 | Alcohols |
| 30 | β-elemene | 14.833 | 515–13-9 | C15H24 | 204.351 | 81, 93, 67, 107 | 0.40 ± 0.03 | 0.33 ± 0.03 | ND | Hydrocarbons |
| 31 | Caryophyllene | 15.01 | 87–44-5 | C15H24 | 204.351 | 93, 133, 91, 79 | ND | 0.55 ± 0.08 | ND | Hydrocarbons |
| 32 | isocaryophyllene | 15.016 | 118–65-0 | C15H24 | 204.351 | 93, 91, 133, 69 | ND | ND | 0.09 ± 0.08 | Hydrocarbons |
| 33 | β-terpineol | 15.163 | 138–87-4 | C10H18O | 154.249 | 71, 93, 43, 107 | ND | ND | 0.08 ± 0.01 | Alcohols |
| 34 | γ-Elemene | 15.597 | 29,873–99-2 | C15H24 | 204.351 | 121, 93, 107, 91 | 0.06 ± 0.01 | ND | ND | Hydrocarbons |
| 35 | (E)-p-Menth-2,8-dien-1-ol; | 15.756 | 7212-40-0 | C10H16O | 152.233 | 109, 134, 79, 137 | ND | ND | 0.05 ± 0.04 | Alcohols |
| 36 | 2,6-Octadiene, 2,6-dimethyl- | 15.798 | 2792-39-4 | C10H18 | 138.25 | 81, 69, 43, 95 | 0.07 ± 0.01 | 0.38 ± 0.04 | ND | Hydrocarbons |
| 37 | Humulene | 16.152 | 6753-98-6 | C15H24 | 204.351 | 93, 121, 80, 41 | 0.02 ± 0.04 | ND | ND | Hydrocarbons |
| 38 | α-Terpineol | 16.226 | 98–55-5 | C10H18O | 154.249 | 59, 93, 121,136 | 0.45 ± 0.06 | 1.13 ± 0.11 | 0.60 ± 0.04 | Alcohols |
| 39 | Dodecanal | 16.659 | 112–54-9 | C12H24O | 184.318 | 57, 43, 41, 82 | ND | 0.10 ± 0.09 | 0.05 ± 0.04 | aldehydes |
| 40 | β-copaene | 16.769 | 18,252–44-3 | C15H24 | 204.351 | 69, 161, 93, 41 | ND | 0.81 ± 0.08 | ND | Hydrocarbons |
| 41 | neryl propionate | 16.775 | 105–91-9 | C13H22O2 | 210.313 | 69, 93, 41, 43 | 0.26 ± 0.02 | ND | ND | Esters |
| 42 | Carvone | 16.854 | 99–49-0 | C10H14O | 150.218 | 82, 108, 54, 93 | ND | 0.47 ± 0.05 | 0.07 ± 0.01 | ketones |
| 43 | Valencene | 16.916 | 4630-07-3 | C15H24 | 204.351 | 161, 91, 79, 119 | 0.18 ± 0.02 | ND | ND | Hydrocarbons |
| 44 | (−)-cis-Isopiperitenol | 17.08 | 96,555–02-1 | C10H16O | 152.233 | 84, 83, 41, 69 | 0.02 ± 0.03 | 0.08 ± 0.07 | ND | Alcohols |
| 45 | Citronellol | 17.27 | 106–22-9 | C10H20O | 156.265 | 69, 41, 67, 55 | ND | 0.66 ± 0.06 | ND | Alcohols |
| 46 | α-Farnesene | 17.288 | 502–61-4 | C15H24 | 204.351 | 93, 69, 41, 107 | 0.29 ± 0.25 | ND | 0.37 ± 0.32 | Hydrocarbons |
| 47 | (+)-Δ-Cadinene | 17.496 | 483–76-1 | C15H24 | 204.351 | 161, 119, 134, 105 | 0.16 ± 0.02 | 0.31 ± 0.03 | 0.05 ± 0.01 | Hydrocarbons |
| 48 | dl-Perillaldehyde | 17.654 | 2111-75-3 | C10H14O | 150.218 | 79, 68, 67, 107 | 0.12 ± 0.02 | 0.24 ± 0.02 | 0.08 ± 0.01 | aldehydes |
| 49 | trans-p-mentha-1(7),8-dien-2-ol | 17.734 | 21,391–84-4 | C10H16O | 152.233 | 109, 134, 91, 119 | ND | ND | 0.12 ± 0.01 | Alcohols |
| 50 | Nerol | 17.783 | 106–25-2 | C10H18O | 154.249 | 69, 41, 93, 68 | 0.01 ± 0.02 | 0.12 ± 0.01 | ND | Alcohols |
| 51 | t-Butylbenzene | 17.874 | 98–06-6 | C10H14 | 134.218 | 119, 43, 59, 134 | 0.03 ± 0.03 | ND | ND | Hydrocarbons |
| 52 | cis-carveol | 18.314 | 1197-06-4 | C10H16O | 152.233 | 109, 84, 83, 55 | 0.16 ± 0.02 | 0.19 ± 0.02 | 0.05 ± 0.05 | Alcohols |
| 53 | Geraniol | 18.497 | 106–24-1 | C10H18O | 154.249 | 69, 43, 135, 41 | 0.02 ± 0.02 | 0.03 ± 0.06 | ND | Alcohols |
| 54 | cherry propanol | 18.503 | 1197-01-9 | C10H14O | 150.218 | 135, 43, 91, 150 | ND | ND | 0.02 ± 0.02 | Alcohols |
| 55 | Carveol | 18.772 | 99–48-9 | C10H16O | 152.233 | 84, 109, 134, 69 | ND | 0.12 ± 0.05 | 0.01 ± 0.02 | Alcohols |
| 56 | cis-isocarveol | 19.108 | 22,626–43-3 | C10H16O | 152.233 | 109, 55, 67, 41 | ND | ND | 0.07 ± 0.06 | Alcohols |
| 57 | Menth-1-en-9-ol | 19.846 | 18,479–68-0 | C10H18O | 154.249 | 45, 94, 121, 67 | ND | 0.03 ± 0.02 | ND | Alcohols |
| 58 | perill alcohol | 20.835 | 536–59-4 | C10H16O | 152.233 | 79, 67, 121, 91 | ND | 0.01 ± 0.02 | ND | Alcohols |
| 59 | Nerolidol, cis-(+) | 21.574 | 142–50-7 | C15H26O | 222.366 | 69, 93, 107, 41 | ND | 0.06 ± 0.01 | ND | Alcohols |
| 60 | methyl n-methylanthranilate | 21.758 | 85–91-6 | C9H11NO2 | 165.189 | 165, 105, 104, 132 | ND | ND | 1.36 ± 0.01 | Esters |
| 61 | α-elemol | 22.002 | 639–99-6 | C15H26O | 222.366 | 59, 93, 161, 81 | 0.08 ± 0.01 | ND | ND | Alcohols |
| 62 | Thymol | 22.704 | 89–83-8 | C10H14O | 150.218 | 135, 150, 91, 115 | 0.05 ± 0.00 | 0.06 ± 0.00 | 0.05 ± 0.01 | Phenols |
| 63 | o-Acetyl-p-cresol | 22.857 | 1450–72-2 | C9H10O2 | 150.174 | 135, 150, 106, 77 | 0.14 ± 0.01 | ND | ND | ketones |
| 64 | carvacrol | 22.985 | 499–75-2 | C10H14O | 150.218 | 135, 150, 91, 77 | ND | 0.03 ± 0.03 | ND | Phenols |
| 65 | o-Isopropylanisole | 22.991 | 2944-47-0 | C10H14O | 150.218 | 135, 150, 91, 136, 133 | ND | 0.01 ± 0.02 | ND | Ether |
| 66 | o-cymen-5-ol | 23.07 | 3228-02-2 | C10H14O | 150.218 | 135, 150, 91, 136, 107 | ND | 0.16 ± 0.14 | ND | Phenols |
| 67 | α-sinensal | 24.243 | 17,909–77-2 | C15H22O | 114.189 | 93, 45, 55, 134 | ND | 0.15 ± 0.27 | 0.46 ± 0.05 | aldehydes |
Note: Data are presented as mean ± standard deviation of three replicate measurements; RT indicates retention time; ND represents not detected.