In the present study, three different leaf extracts of wild variety of Olea europaea were tested for their phytochemical composition, antioxidant and antimicrobial activities. The antimicrobial activities were determined using the well diffusion method. Phytochemical screening revealed that aqueous, ethanol and ethyl acetate extracts contained alkaloids, flavonoids, steroids, saponins, phenols and tannins while only ethyl acetate fraction was negative for glycosides. Ethanol extract of the plant was observed to have highest contents of alkaloids, flavonoids and phenols. The free radical reducing power assay, DPPH and hydrogen peroxide radical scavenging activities of ethanol extract of O. europaea showed a linear correlation with phenol contents. Ethanol extract was more effective against most of the pathogenic bacteria while aqueous and ethyl acetate extracts were found more potent against most of the fungal strains. The current study revealed that wild variety of O. europaea is as an efficient source of antioxidant and antimicrobial phytochemicals.

中文翻译：

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油橄榄野生品种叶片的化学组成，抗氧化和抑菌活性

在本研究中，测试了三种欧洲油橄榄叶提取物的植物化学成分，抗氧化剂和抗菌活性。使用孔扩散法测定抗微生物活性。植物化学筛选显示，水，乙醇和乙酸乙酯提取物包含生物碱，类黄酮，类固醇，皂角苷，酚和单宁，而只有乙酸乙酯馏分对糖苷呈阴性。观察到该植物的乙醇提取物中生物碱，类黄酮和酚的含量最高。O乙醇提取物的自由基还原能力测定，DPPH和过氧化氢自由基清除活性。木犀科与苯酚含量呈线性关系。乙醇提取物对大多数病原菌更有效，而水和乙酸乙酯提取物对大多数真菌菌株更有效。目前的研究表明，野生品种的Ø。木贼属是抗氧化剂和抗菌植物化学物质的有效来源。