Table 4.
Eigen values, percentage variations and loadings of the phytochemical classes on the plane of the first three principal components
| PC 1 | PC 2 | PC 3 | |
|---|---|---|---|
| Eigen value | 25.28 | 12.12 | 7.90 |
| Percent of variance | 50.36 | 24.15 | 15.73 |
| Alcohol | 0.43 | −0.17 | −0.15 |
| Aldehyde | 0.35 | −0.17 | −0.21 |
| Alkane | 0.20 | −0.03 | 0.48 |
| Alkene | 0.11 | −0.07 | 0.23 |
| Carboxylic acid | 0.39 | 0.27 | 0.56 |
| Ester | 0.05 | 0.05 | 0.17 |
| Ether | 0.24 | 0.00 | −0.43 |
| Fatty acid | 0.02 | 0.87 | −0.18 |
| Heterocyclic compound | 0.25 | 0.04 | −0.24 |
| Ketone | 0.60 | −0.03 | −0.05 |
| Phenol | 0.00 | −0.10 | −0.01 |
| Phytosterols | −0.05 | −0.03 | 0.12 |
| Steroid | 0.11 | 0.28 | −0.06 |
| Sugar | 0.04 | −0.11 | 0.08 |