从大麻种子中提取的水性提取物作为对抗Staphylococcus epidermidis生物膜的新武器
Angela Casillo1, Caterina D'Angelo1, Paola Imbimbo1
1Department of Chemical Sciences, University of Naples "Federico II", Via Cintia 21, 80126 Napoli, Italy.
International journal of molecular sciences
|November 25, 2023
概括
大麻sativa种子提取物显示出针对Staphylococcus epidermidis的显著抗菌膜活性. 最有效的提取物,富含甘油脂,约90%抑制生物膜的形成,没有细胞毒性.
科学领域:
- 自然产品 化学 化学
- 微生物学 微生物学
- 生物技术是生物技术.
背景情况:
- 斯塔菲洛科克斯 (Staphylococcus epidermidis) 生物膜的形成在医疗保健环境中带来了重大挑战.
- 大麻sativa种子是生物活性化合物的潜在来源.
- 了解种子提取物的化学成分对于识别治疗剂至关重要.
研究的目的:
- 为了研究在各种pH条件下获得的Cannabis sativa种子提取物的抗菌膜活性.
- 确定这些提取物的化学成分,并确定关键的生物活性成分.
- 评估提取物对HaCaT细胞的细胞毒性.
主要方法:
- 来自Cannabis sativa种子 (脱脂和非脱脂) 的水溶性提取物在不同的pH值下制备.
- 气色谱-质谱 (GC-MS) 和核磁共振 (NMR) 用于化学分析.
- 评估了针对Staphylococcus epidermidis的抗生物膜活性.
- 使用HaCaT细胞评估了细胞毒性.
- 高性能液体染色学 (HPLC) 和2D-NMR被用于分数分析.
主要成果:
- 提取物中含有脂肪酸,糖,氨基酸和糖醇的复杂混合物,根据提取pH值而变化.
- 在pH值7 (Ex7d) 的脱脂种子提取物表现出最高的抗菌膜活性 (约90%),并含有各种各样的糖.
- 酸存在于pH 7和pH 10的提取物中.
- 在HaCaT细胞中没有观察到细胞毒性.
- 通过HPLC分化,确定了甘油脂是最强效提取物中的主要活性成分.
结论:
- 大麻sativa种子提取物具有显著的抗菌膜特性,可以对抗Staphylococcus epidermidis.
- 甘油脂可能是观察到的抗菌膜效应的主要贡献者,可能与其他化合物协同作用.
- 提取pH影响大麻sativa种子提取物的化学成分和生物活性.
- 这些发现凸显了大麻种子衍生化合物作为天然抗菌膜剂的潜力.
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