Table 3.
The loadings of the first four rotated principal components.
| The Loading | |||||
|---|---|---|---|---|---|
| Peak No. | Compound | PC1 (35.44%) | PC2 (25.81%) | PC3 (10.10%) | PC4 (8.64%) |
| 5 | Isoferulic acid | 0.911 | 0.083 | −0.211 | 0.064 |
| 2 | Caffeic acid | 0.869 | 0.115 | 0.032 | 0.015 |
| 17 | CAPE | 0.825 | −0.069 | −0.009 | 0.312 |
| 6 | 3,4-Dimethoxycinnamic acid | 0.745 | 0.277 | −0.292 | 0.236 |
| 4 | Ferulic acid | −0.034 | −0.914 | −0.119 | 0.087 |
| 19 | Benzyl p-coumarate | −0.238 | −0.850 | 0.090 | −0.357 |
| 3 | p-Coumaric acid | −0.249 | −0.849 | 0.015 | −0.354 |
| 11 | Kaempferol | −0.041 | 0.659 | 0.587 | 0.169 |
| 13 | Pinobanksin | −0.386 | 0.599 | 0.398 | 0.427 |
| 14 | Benzyl caffeate | 0.063 | 0.092 | −0.769 | −0.024 |
| 18 | Galangin | −0.396 | 0.242 | 0.709 | 0.370 |
| 15 | 3-O-acetylpinobanksin | 0.496 | 0.486 | 0.589 | 0.015 |
| 8 | Pinocembrin | −0.218 | 0.127 | 0.541 | −0.495 |
| 16 | Chrysin | 0.103 | 0.356 | 0.023 | 0.829 |
| 12 | Apigenin | 0.309 | 0.170 | 0.198 | 0.757 |
Bold fonts indicate high score (absolute value greater than 0.6).