The Effect of Alcoholic Extracts of Strawberries and Green Tea on Enterococcus faecalis Isolated from Urinary Tract Infections

Scientific Journal of King Faisal University: Basic and Applied Sciences Pub Date : 2024-06-01 DOI:10.37575/b/sci/240007

Aws Sulaiman, Saja Fadhil

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Abstract

Plant extracts contain active substances that exhibit antibacterial effects. Our study aimed to evaluate the antibacterial activity of alcoholic extracts (acetone, methanol, and ethanol) of strawberries and green tea against Enterococcus spp. We collected 30 samples from individuals suffering from urinary tract infections. Initially, we identified 8 (26%) isolates outwardly; subsequent confirmatory molecular diagnostics resulted in one isolate, registered at the National Center for Biotechnology Information as AsAw1, marking a global first. The strawberry extract exhibited a significant inhibitory effect on Enterococcus spp., with a zone of inhibition measuring 23 and 26 mm. Conversely, the green tea extract demonstrated a weaker inhibitory effect, with a zone of inhibition measuring 19 mm. These findings underscore the potential of ethanolic strawberry extract as a natural antibacterial agent against Enterococcus spp., offering insights for further research and potential therapeutic applications in the treatment of urinary tract infections caused by these bacteria. KEYWORDS acetone, catechin, flavonoids, gelatinase, hemolytic, vancomycin

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草莓和绿茶的酒精提取物对从尿路感染中分离出的粪肠球菌的影响

植物提取物中含有具有抗菌作用的活性物质。我们的研究旨在评估草莓和绿茶的酒精提取物（丙酮、甲醇和乙醇）对肠球菌的抗菌活性。我们收集了 30 份尿路感染患者的样本。最初，我们从外观上确定了 8 个（26%）分离株；随后进行了分子诊断确认，结果有一个分离株在美国国家生物技术信息中心注册为 AsAw1，这在全球尚属首次。草莓提取物对肠球菌属有明显的抑制作用，抑制区分别为 23 毫米和 26 毫米。相反，绿茶提取物的抑制作用较弱，抑制区为 19 毫米。这些发现强调了草莓乙醇提取物作为一种天然抗菌剂对肠球菌属的潜在作用，为进一步研究和治疗由这些细菌引起的尿路感染提供了启示。

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Scientific Journal of King Faisal University: Basic and Applied Sciences

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