Table 2.
Total polyphenol and flavonoids contents and in vitro antioxidant activities of P. sativum extracts.
| Extracts | Total polyphenols (mg GA/g extract) | Total flavonoids (mg quercetin/g extract) | Antioxidant activity | |
|---|---|---|---|---|
| DPPH (IC50, μg/mL) | FRAP (mM of FeSO4/g extract) | |||
| Aqueous extract | 29.44 ± 0.20b | 6.55 ± 0.20b | 20.03 ± 0.30a | 27.22 ± 0.50b |
| Ethanolic extract | 48.5 ± 0.30a | 40.8 ± 1.0a | 25.76 ± 0.50ab | 37.03 ± 0.20a |
| Quercetin | – | – | 0.23 ± 0.01d | – |
| BHT | – | – | 4.21 ± 0.08c | – |
Letters in superscript indicate a statistical difference at p < 0.05.