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Assessments of Antibacterial and Antioxidant Properties in the methanolic and Aqueous leaf extracts of Pistacia lentiscus against Different Antibiotic Resistance Pathogenic Bacteria

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Advances in Bioscience and Biotechnology 2022年第3期13卷 113-133页

作者： Aml O. Alhadad Galal S. Salem Maraia F. Elmhdwi Suliman M. Hussein Sarah M. Elshareef Department of Botany Faculty of Science University of Benghazi Benghazi Libya Department of Chemistry (Biochemistry) Faculty of Science University of Benghazi Benghazi Libya

The current study was carried out to determine the bioactivity of P. lentiscus leaf extracts as potential antibacterial and antioxidant properties. The plant extracts were examined for antibacterial activity against antibiotic-resistant Staphylococcus aureus, Staphylococcus haemolyticus, Pseudomonas aeruginosa, and Proteus mirabilis using the agar well method (according to the guidelines of Clinical and Laboratory Standard Institute). The antioxidant potential of 3 plant leaf extracts was determined by their ability to convert Fe3+ to Fe2+ and scavenge the DPPH free radical. At all concentrations studied, the methanolic leaf extract had higher total phenolic and flavonoid content, as well as stronger antioxidant and antibacterial inhibitory activity compared to aqueous extract. Our findings with P. aeruginosa were especially interesting, because this bacterium was inhibited by methanol extract than that of the reference antibiotics. The results also demonstrated a link between DPPH radical scavenging ability, reducing power, and total phenolic and flavonoid content of plant extracts (r > 0.97, R2 > 0.95, P = 0.01). As a result, the methanolic leaf extract of the chosen plant might be employed as an effective antioxidant and antibacterial agent for the treatment of a variety of morbidities.

关键词： Antioxidant Activity Polyphenols methanolic leaf extracts DPPH Reducing Power Pistacia lentiscus

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