Table 2.
Antioxidant activity (AA), TPC, TFC, phenolic acids, and flavonoid content (expressed as mg/g) in SSEE. Data are the mean ± S.E. of three technical determinations.
| Assays or compounds | Concentration referred to | |
|---|---|---|
| Ethanolic plant extract | Plant dry weight | |
| AA | ||
| ORAC (mmol TE/g) | 1.85 ± 0.15 | 0.11 ± 0.09 |
| DPPH (mmol TE/g) | 1.57 ± 0.11 | 0.097 ± 0.007 |
| TPC | 164.95 ± 8.57 | 10.19 ± 0.53 |
| TFC | 109.13 ± 5.23 | 6.74 ± 0.32 |
| RA | 84.76 ± 9.32 | 5.23 ± 0.57 |
| HESP | 0.2 ± 0.02 | 0.012 ± 0.001 |
| Q-3-O-GLU | 0.7 ± 0.04 | 0.043 ± 0.004 |
| CHA | 1.32 ± 0.16 | 0.08 ± 0.09 |
| CA | 0.17 ± 0.02 | 0.010 ± 0.001 |
| SA | 0.02 ± 0.003 | 0.001 ± 0.0001 |
RA: rosmarinic acid; HESP: hesperetin; Q-3-O-GLU: quercetin-3-O-glucoside; CHA: chlorogenic acid; CA: caffeic acid; SA: syringic acid.