Table 1. Phytochemical analysis of the S. scardica extracts prepared with different solvents.
Total content of polyphenolic compounds was measured with an unspecific Folin-Ciocalteu method. Single groups of polyphenols were analysed by HPLC with UV detection.
| Abbreviation | H2O | EtOH20 | EtOH40 | EtOH50 | EtOH70 |
| Extraction solvent | Water | 20% ethanol (V/V) | 40% ethanol (V/V) | 50% ethanol (V/V) | 70% ethanol (V/V) |
| DER native | 5.8:1 | 7.2:1 | 4.7:1 | 5.7:1 | 5.7:1 |
| Polyphenols [%] | 5.07 | 6.25 | 9.28 | 6.23 | 7.37 |
| Flavonoids [%] | 0.59 | 1.18 | 2.42 | 2.03 | 2.82 |
| Acteoside [%] | 0.12 | 0.41 | 1.41 | 0.94 | 1.54 |
| Caffeoylquinic acids [%] | 0.24 | 0.47 | 0.39 | 0.38 | 0.49 |