Table 5.
Pearson’s correlation coefficients between the biological activities and concentrations of secondary metabolites in different RL extracts. Abbreviations: total phenolic (TPC), total flavonoid (TFC), total triterpene content (TTC); nd—significant correlation not detected; other abbreviations as in Table 3 and Table 4.
| DPPH | ABTS | ORAC | Chelating Power | % LOX Inhibition | |
|---|---|---|---|---|---|
| TPC | 0.689 | 0.551 | nd | nd | 0.482 |
| TFC | 0.715 | 0.492 | 0.374 | nd | 0.379 |
| TTC | 0.440 | nd | 0.755 | 0.541 | nd |
| Sum of phenolic acids | nd | nd | nd | 0.889 | nd |
| Sum of flavonoid aglycones | 0.619 | nd | 0.401 | 0.326 | nd |
| Sum of flavonoid glycosides | nd | nd | nd | 0.691 | nd |
| Gallic acid | 0.683 | nd | 0.318 | nd | nd |
| Protocatechuic acid | 0.430 | nd | nd | nd | nd |
| 5-O-caffeoylquinic acid | nd | nd | nd | 0.863 | nd |
| p-coumaric acid | nd | nd | nd | 0.553 | nd |
| Catechin | 0.561 | 0.663 | nd | nd | 0.624 |
| Quercetin | 0.486 | nd | 0.451 | 0.367 | nd |
| Hyperoside | nd | nd | 0.337 | 0.663 | nd |
| Isoquercetin | nd | nd | nd | 0.686 | nd |
| Quercitrin | nd | nd | 0.451 | 0.733 | nd |
| Taxifolin | nd | nd | nd | 0.776 | nd |
| Eriodictyol | nd | nd | 0.489 | 0.767 | nd |