Volume 14

April-June 2022

Antioxidant activity of Bellis sylvestris ‎ Cyr. extracts ‎

Mounira Merghem, Wafa Nouioua, Nawel Merouani

Abstract:
In the present study, the different solvent extracts viz., ethanol and water of the medicinal plant Bellis sylvestris Cyr. (aerial parts) (Asteraceae), were evaluated for phytochemical analysis, and antioxidant activity. The polyphénols and flavonoids contents of Bellis sylvestris Cyr. extracts were determined. The highest phenolic content was obtained from ethanolic extract of Bellis sylvestris Cyr.  (221.323±10.69 μg GAE/mg extract) and lowest in aqueous extract (125.09±9.08 μg GAE/mg extract). As well as the highest concentration of Total flavonoid content was detected in ethanolic extract (27.354±0.26 μg QE/mg extract), followed by the aqueous extract (18.618±0.19 μg QE/mg extract), Ethanolic extract exhibited the highest antioxidant capacity of DPPH(0.053 ± 0.000 mg/mL) followed by the ,aqueous extract of Bellis sylvestris (0.234 ± 0.012 mg/mL). All the test extracts showed potent antioxidant capacity in the β-carotene bleaching inhibition test with (85.775% ± 14.87) for ethanolic extract and (75.766% ± 2.51) for aqueous extract, in comparison with BHT(100% ). In Conclusion, the present study concludes that the plant Bellis sylvestris Cyr. could be exploited for the isolation of bioactive compounds which could be a potential source for antioxidants.

Keywords: Bellis sylvestris Cyr., Polyphenols, Antioxidant Activity, DPPH Radical Scavenging, β-carotene/Linoleic Acid Bleaching.