多种料增强了澳大利亚蜂蜜的抗菌作用
Kenya E Fernandes1,2, Andrew Dong1, Jamie Ayton3
1School of Life and Environmental Sciences, University of Sydney, Sydney, New South Wales, Australia.
MicrobiologyOpen
|February 24, 2026
概括
澳大利亚的蜂蜜,特别是来自森林火灾后的混合动植物,对常见病原体表现出显著的抗菌活性. 过氧化 (H2O2) 是一个关键的驱动因素,突出了治疗应用和以生物多样性为重点的养蜂的潜力.
科学领域:
- 微生物学 微生物学
- 自然产品化学 自然产品化学
- 食品科学 食品科学 食品科学
背景情况:
- 抗菌素耐药性 (AMR) 是一个全球性的健康危机,需要新的治疗策略.
- 蜂蜜等天然产品正作为传统抗微生物药物的潜在替代品引起越来越多的关注.
- 澳大利亚本土植物提供了一个独特的生物活性蜂蜜来源,其抗菌潜力在很大程度上尚未被探索.
研究的目的:
- 从森林火灾后的景观系统评估澳大利亚蜂蜜的抗菌活性和化学成分.
- 确定蜂蜜生物活性的主要驱动因素,并评估它们的治疗潜力.
- 调查花源 (单花与混合植物) 对抗菌特性的影响.
主要方法:
- 使用微稀释 (总和非氧化物活性) 确定了对金黄色葡萄球菌和大肠杆菌的抗菌活性.
- 综合化学分析包括分析生物活性化合物,糖,有机酸,氨基酸,挥发物和二次代谢物,使用标准化方法和1H-NMR.
- 统计分析包括相关性,LASSO回归和主要成分分析,以确定生物活性的驱动因素.
主要成果:
- 高比例的蜂蜜 (77%) 对两种病原体都表现出强烈的抗菌活性 (MIC ≤ 10% w/w),其中25%对至少一种病原体表现出强烈的活性 (MIC ≤ 5% w/w).
- 过氧化 (H2O2) 被确定为影响抗菌功能的主要因素,解释了MIC变化的45-46%.
- 结合额外的化学参数的多变量模型改善了抗菌强度的预测,解释了高达59%的S. aureus和73%的E. coli的变化.
结论:
- 混合植物蜂蜜表现出持续高的抗菌活性,挑战了对单花蜂蜜的偏好,并支持以生物多样性为重点的养蜂.
- 这些发现为开发澳大利亚蜂蜜作为治疗剂提供了科学基础.
- 这项研究支持可持续的养蜂实践和在森林火灾后的景观中恢复工业.
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