在埃及收集的Ulva intestinalis的抗菌和化学分析
Dina Hussien Ibrahim1, Hoida Ali Badr2, Magdy A Abu-Gharbia2
1Department of Botany and Microbiology, Faculty of Science, Sohag University, Sohag, 82524, Egypt. dinahussien914@gmail.com.
Scientific reports
|November 29, 2025
概括
绿色海藻Ulva intestinalis提取物显示出强大的抗菌和抗菌膜活性对金黄色葡萄球菌. 这种海洋天然产品为传统抗生素提供了有前途的替代品,解决了细菌耐药性日益增加的问题.
科学领域:
- 海洋生物技术 海洋生物技术
- 自然产品化学 自然产品化学
- 微生物学 微生物学
背景情况:
- 抗生素耐药性和不良影响需要新型抗菌剂.
- 海藻提取物以其潜在的治疗特性而闻名.
- 绿色海藻Ulva intestinalis因其药用用途而受到探索.
研究的目的:
- 评估Ulva intestinalis提取物的抗菌和抗菌膜活性.
- 识别生物活性化合物及其功能组.
- 调查潜在的分子机制,以对抗黄金葡萄球菌.
主要方法:
- 使用乙醇,甲醇和制备了Ulva intestinalis的原始提取物.
- 使用阿加井扩散方法评估抗菌活性,以对抗金黄色葡萄球菌.
- 抗生物膜活性使用96井微型板试验进行了评估.
- 植物化学分析包括气色谱-质谱法 (GC-MS) 和富里埃变换红外光谱法 (FTIR).
- 对 Staphylococcus aureus 的目标进行了分子对接研究.
主要成果:
- 乙醇提取物表现出最高的抗菌活性,抑制区为35.03毫米,在200微克/毫升时.
- 甲醇提取物显示出显著的抗生物膜疗效,在200μg/mL时抑制了91.26%的生物膜形成.
- 在GC-MS中,GC-MS发现了像达干和埃可桑这样的化合物;FTIR证实了,酒精和氨基团.
- 分子对接揭示了化合物与RNA聚合酶,DNA旋转酶和PBP2a具有强烈的结合亲和力.
结论:
- 乌尔瓦肠道菌具有显著的抗微生物和抗菌膜特性.
- 海藻是开发抗生素天然替代品的有希望的来源.
- 已识别的化合物及其与细菌点的相互作用表明了潜在的治疗应用.
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