Phytochemical Screening, Polyphenols Content, Antioxidant Power, and Antibacterial Activity of Herniaria hirsuta from Morocco

Abstract

The aim of this study is to investigate in vitro antioxidant and antibacterial activities of the aqueous and hydroethanolic extracts for aerial parts of Herniaria hirsuta. Extracts were screened for their possible antioxidant activities by three tests: DPPH free radical-scavenging, reducing power, and molybdenum systems. The screening of antibacterial activity of extracts was individually evaluated against sixteen bacteria species using a disc diffusion method. Flavonoids, total phenols, and tannins content were performed for both extracts. It shows higher content in the hydroethanolic extract. The hydroethanolic extract showed a significant antioxidant activity for the three methods studies to the aqueous extract, but nonsignificant results compared to the reference (BHT). However, both extracts have negative effect on the strains studies for the antibacterial activity.

Influence of Phenolic Compounds on Antioxidant and Anticorrosion Activities of Ammi visnaga Extracts Obtained Ultrasonically in Three Solvent Systems

“…The high capacity of the hydroalcoholic extract to trap free radicals could be attributed to the presence of a high polyphenol content according to [45,46]. Our results were in agreement with other researchers [34,40].…”

“…The obtained results were superior to [34] because the content of phenolic compounds varied by the extraction method according to [37]. The extraction of phenolic compounds by the combination of alcohol and water was more efficient when compared with extraction by a single solvent [38], and the present results were in agreement with those found by [39,40].…”

“…Indeed, phenolic compounds are highly soluble in a mixture of organic and polar (water) solvents. Similar results were obtained by Ammor and Aourabi [34,35], and the extraction yield of the hydroalcoholic and ethanolic extract of A. visnaga obtained by Soxhlet gave values of 23.40% and 23.35%, respectively. The extracts obtained by ultrasonic extraction had low yields compared with those obtained by Soxhlet; this can be explained by the heating applied during the operation (Soxhlet) as well as the long extraction time.…”

“…The phenolic content in different samples was influenced by the polarity of the solvent as well as the solubility of these compounds in the solvent used for extraction [34,36]. The TPC values were obtained from the calibration curve equation (2 (2) where Y is the absorbance and x is the concentration of the gallic acid solution (mg/mL).…”

In vitro litholytic activity of extracts and phenolic fractions of some medicinal plants on urinary stones

“…After that, the extract was filtered and been concentrated under reduced pressure. We realized in previous studies on these plants a phytochemical screening as well as the dosage made of the flavonoids and the total phenols [28][29][30] .…”