Table 2.
Average (± SE) emission rates per unit dry mass (nmol g-1 s-1) of the volatiles identified from leaves and different floral parts of Ocimum basilicum
| Compounds | Retention Time (min) | Leaves | Intact Inflorescences | Sepals | Petals | Pistils &Stamina | Pedicels |
|---|---|---|---|---|---|---|---|
| Aliphatic derivatives | |||||||
| (Z)-3-Heptene | 9.737 | 1.82±0.37a | ND | ND | ND | ND | ND |
| Pentanal | 10.777 | NDb | 0.37±0.12 | ND | ND | ND | ND |
| n-Hexanal | 13.895 | 0.230±0.050 | 1.88±0.32 | 1.67±0.31 | ND | ND | 3.8±0.6 |
| cis-3-Hexen-1-ol | 16.512 | 1.93±0.27 | 1.52±0.43 | 1.92±0.34 | 0.13±0.04 | ND | 2.4±0.5 |
| Heptanal | 18.262 | ND | ND | 1.5±0.5 | ND | ND | ND |
| 2-ethyl,1-Hexanol | 25.665 | 2.3±0.6 | 3.71±0.41 | 3.7±0.6 | 8.3±2.1 | 7.6±3.2 | 4.5±0.6 |
| Nonanal | 30.115 | 4.1±0.7 | 3.62±0.32 | 21.6±2.3 | 41.3± 2.3 | 31.7±4.3 | 10±2 |
| Decanal | 36.837 | 4.2±0.6 | 1.65±0.05 | 24.7±2.4 | 24.7± 4.2 | 19.6±2.4 | 31±5 |
| Monoterpenoids | |||||||
| α-Pinene | 18.672 | 0.250±0.040 | 0.53±0.06 | 1.17±0.23 | ND | ND | 0.44±0.11 |
| Camphene | 19.777 | 0.170±0.030 | 0.190±0.020 | ND | ND | ND | ND |
| α-Myrcene | 20.704 | ND | 0.42±0.06 | ND | 2.3±0.9 | 3.2 ±2.0 | 3.2±1.0 |
| β-Pinene | 21.187 | 0.46±0.12 | 6.4±1.3 | 25.3±5.2 | 5.2± 0.8 | 6.4 ± 3.1 | 0.85± 0.26 |
| γ-Terpinene | 22.81 | 0.33±0.07 | 0.220±0.040 | 0.52±0.05 | 1.57±0.32 | 1.81±0.07 | 1.14±0.23 |
| α-Pinene epoxide | 23.19 | ND | 1.85±0.37 | 2.1±1.4 | 3.0±0.7 | 3.2±1.0 | 5.8±1.3 |
| trans-β-Ocimene | 23.735 | 0.140±0.040 | 1.46±0.31 | 4.2±0.7 | 1.23±0.14 | 1.52±0.34 | 1.16±0.34 |
| Limonene | 23.94 | 0.430±0.06 | 2.32±0.47 | 7.0±2.1 | ND | ND | ND |
| cis-β-Ocimene | 24.606 | 0.050±0.010 | 2.23±0.32 | 6.8±0.8 | ND | ND | 16.0±3.1 |
| 1,8-Cineole | 24.77 | 0.130±0.040 | 0.39±0.07 | 3.2±0.6 | 1.88±0.32 | 1.5±0.5 | ND |
| Terpinolene | 27.537 | 0.39±0.05 | 0.28±0.06 | 0.91±0.23 | ND | ND | ND |
| Linalool | 29.889 | 0.42±0.09 | 5.2±1.5 | 17.3±4.4 | ND | ND | 1.72±0.44 |
| Camphor | 35.036 | 0.33±0.05 | 0.45±0.07 | 1.64± 0.27 | ND | ND | ND |
| α-Terpineol | 37.145 | 0.060±0.010 | 0.42±0.11 | 0.63±0.15 | ND | ND | ND |
| Limonene oxide | 47.789 | ND | ND | 0.81±0.27 | ND | ND | ND |
| Sesquiterpenoids | |||||||
| α-Copaene | 47.094 | 0.120±0.040 | 0.060±0.010 | 0.68±0.09 | ND | ND | ND |
| β-Elemene | 48.322 | ND | 0.080±0.020 | 5.6±0.8 | ND | ND | ND |
| α-Bergamotene | 50.41 | 0.170±0.020 | 4.02±0.37 | 57.1±4.0 | ND | ND | 0.92±0.12 |
| α-Guaiene | 51.095 | 0.120±0.020 | 0.210±0.030 | 3.9±0.6 | ND | ND | ND |
| α-Cubebene | 52.116 | ND | ND | 0.56±0.16 | ND | ND | ND |
| α-Caryophyllene | 53.397 | ND | ND | 0.91±0.26 | ND | ND | ND |
| α-Curcumene | 53.909 | ND | 0.070±0.010 | 2.89±0.33 | ND | ND | ND |
| β-Farnesene | 54.17 | ND | 0.140±0.030 | 4.2±0.8 | ND | ND | ND |
| β-Bisabolene | 54.907 | ND | 0.110±0.030 | 6.3±0.7 | ND | ND | ND |
| α-Selinene | 55.218 | ND | 0.180±0.05 | 1.91±0.39 | ND | ND | ND |
| α-Bulnesene | 55.551 | 0.160±0.040 | 0.36±0.06 | 9.5±2.1 | ND | ND | ND |
| Cedrene | 56.1 | 0.81±0.13 | 0.91±0.08 | 16.4±3.2 | ND | ND | ND |
| α-Bisabolol | 56.477 | 0.170±0.030 | 0.200±0.040 | 0.82±0.13 | ND | ND | ND |
| α-Muurolene | 57.17 | 0.090±0.020 | 0.40±0.19 | 0.93±0.17 | ND | ND | ND |
| Viridiflorol | 60.564 | 0.190±0.030 | 0.34±0.06 | 1.0±0.6 | ND | ND | ND |
| Cubenol | 61.9 | 0.050±0.010 | 1.35±0.08 | 5.22±0.26 | ND | ND | ND |
| δ-Cadinol | 62.898 | 0.28±0.06 | 0.59±0.15 | 11.8±4.3 | ND | ND | ND |
| Benzenoids | |||||||
| Eugenol | 49.33 | 0.050±0.010 | 0.36±0.05 | 13.1± 2.1 | ND | ND | ND |
a
All data are averages of three independent measurements with different plants.
b
ND: not detected.