Evaluation of Some Secondary Metabolites and Determination of the Antioxidant Potential of Different Extracts from the Plant of <i>Pteridium aquilinum</i>

Abstract

The present study aims to make an evaluation of some secondary metabolites and determination of the antioxidant potential of P. aquilinum plant extracts obtained by means of a simple and rapid TLC method. The latter revealed the presence of terpenes, sterols, steroids, flavonoids, polyphenols, saponins, sugars and amino acids. The evaluation of the potential antioxidant was assessed on phenolic and flavonoid compounds. These compounds' dosages revealed different levels, but the highest antioxidant activity was found in the hydro-ethanol extract followed by the aqueous extract. Among the two families of evaluated antioxidants, phenolic compounds were found to be higher in the hydroethanolic extract (75.18 mgEAG/gM S ), followed by the aqueous extract (66.78 mgEAG/gM S ) and lower in the ethanolic extract (12.39 mgEAG/gM S ). Whereas flavonoids, less significantly elevated, showed values of 2.58 mgECa/gM S for the hydro-ethanolic extract, 2.24 mgECa/gM S for the aqueous extract and 1.58 mgECa/gM S for the ethanolic extract. However, the antiradical activity was also evaluated. Contrary to the antioxidant activity, the most important antiradical activity was observed on the hydroethanolic extract with a rate of 3.61 mg/mL, then a weak activity on the aqueous and ethanolic extracts respectively 6.18 mg/mL and 15.81 mg/mL, then less important on the aqueous

Comparative Bio-Potential Effects of Fresh and Boiled Mountain Vegetable (Fern) Extract Mediated Silver Nanoparticles

“…Apart from the specified peaks, few other peaks were observed in both cases, which might be due to the phytochemicals or bioactive compounds prevailing in the Fbf and Bbf extracts that might have acted as both reducing and capping agents during biosynthesis of Fbf-AgNPs and Bbf-AgNPs [30][31][32][33]. Similar results on the XRD peaks of the biosynthesized silver nanoparticles are also presented in the previously published literature [20,29,34].…”