Table 1 Taxonomic classification of commercial essential oils of P. sylvestris by the developed PLS-DA model4 and the enantiomeric excess of (−)-α-pinene.
Commercial EOs of P. sylvestris | Predicted class | Enantiomer | Enantiomeric excess (%) |
|---|---|---|---|
1 | P. nigra | (−)-α-pinene | 3.1 ± 0.0 |
2 | Not classified | (−)-α-pinene | 19.8 ± 0.0 |
3 | Not classified | (−)-α-pinene | 78.4 ± 0.1 |
4 | P. nigra | (−)-α-pinene | 76.0 ± 0.0 |
5 | Not classified | (−)-α-pinene | 74.3 ± 0.0 |
6 | Not classified | (−)-α-pinene | 82.4 ± 0.0 |
7 | Not classified | (−)-α-pinene | 69.1 ± 0.0 |
8 | P. nigra | (−)-α-pinene | 76.1 ± 0.1 |
9 | P. nigra | (−)-α-pinene | 66.7 ± 0.1 |
10 | P. nigra | (−)-α-pinene | 8.6 ± 0.1 |
11 | Not classified | (−)-α-pinene | 83.0 ± 0.0 |
