Antioxidant capacity and compositional analysis of cinnamomum zeylanicum bark
Résumé
The present research was conducted to determine composition and in vitro antioxidant capacity of Cinnamomum zeylanicum bark. Purposely, three conventional solvents i.e. aqueous ethanol, methanol and acetone, each for 30, 45, 60 min were employed. All the conventional extracts were evaluated for total phenolic contents (TPCs), ferric reducing antioxidant power (FRAP), 2,2-diphenyl 1-picrylhydrazyl (DPPH) and antioxidant activity. Results depicted that aqueous ethanolic extract showed maximum TPCs 337.20±10.43 mg GAE/100g, DPPH 58.39±2.80%, FRAP 190.84±6.15 μmolFe2+/g and β-carotene 61.68±1.77% at 60 min. Moreover, the results of proximate analysis revealed crude protein and fiber as 4.21±0.15 and 26.87±0.95%, respectively. Mineral analysis exhibited higher value for calcium and potassium as 654.27±23.05 and 375.46±13.23 mg/100g, respectively. It is concluded that ethanolic extract of cinnamon bark showed maximum antioxidant potential.