Phytochemical study and antibacterial activity of different extracts of <i>Pistacia lentiscus L</i> collected from Dahra Region West of Algeria

Abstract

The purpose of this study was to investigate the phytochemical proprieties , antioxidant and antibacterial activities of different of Pistacia lentiscus extracts on two pathogenic bacteria. Total phenols concentration was analyzed using Folin-Ciocalteu’s method. The antioxidant activity was investigated with the 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH) free radical scavenging method. Different extracts from the medicinal plant were screened for their antibacterial activities against Staphylococcus aureus and Esherichia coli using agar disc diffusion method and minimum inhibitory concentration. The phytochemical study revealed the presence of major bioactive chemical constituents in different extracts of P. lentiscus (flavonoids, alkaloids, saponins, tannins, glycosides , terpenoids and steroids ) and the absence of anthraquinons and quinons .Results showed that this plant has antioxydant activity and high quantity of total phenols and flavonoids. Antimicrobial activity of the aerial parts of P. lentiscus against tested bacteria has shown that Gram-negative strains were more resistant compared to the Gram- positive ones.we can concluded that Pistacia lentiscus from Dahra region under investigation can be a potential source of useful drugs.