精油在收获后的真菌控制中的直接和挥发性潜在应用
Ygor G P Osti1, Larissa G R Duarte2, Conny W T Fukuyama1
1Department of Biotechnology, Federal University of São Carlos, Sao Carlos, Brazil.
Chemistry & biodiversity
|March 11, 2025
概括
来自菜等植物的精油对破坏热带水果的真菌具有强烈的抗真菌活性. 这些天然化合物的蒸汽暴露提供了一种可持续的替代合成杀菌剂,以减少食物损失.
科学领域:
- 农业科学 农业科学
- 菌类学 菌类学是指菌类学.
- 食品科学 食品科学 食品科学
背景情况:
- 收获后的真菌感染导致全球粮食损失严重,影响粮食安全.
- 植物病原菌,如Lasiodiplodia theobromae,Alternaria alternata和Fusarium solani,是热带水果腐烂的主要原因之一.
研究的目的:
- 评估来自六种植物物种的精油 (EO) 对主要热带水果真菌病原体的抗真菌潜力.
- 为了比较直接接触与蒸汽相应用EO的疗效.
主要方法:
- 使用直接接触和挥发试验评估了抗真菌活性.
- 对每个EO针对菌的目标,确定了最小抑制度 (MIC).
- 扫描电子显微镜可视化了EO对真菌细胞结构的影响.
主要成果:
- 来自Origanum vulgare (香) 的精油表现出最强大的抗真菌活性.
- 蒸汽暴露需要较低的MIC (40200μL/L) 与直接接触 (125500μL/L) 相比,以有效抑制真菌.
- EO显示真菌细胞形态的显著破坏.
结论:
- 精油,特别是Origanum vulgare,是有效的天然药物,可以对热带水果的收获后的真菌病原体起作用.
- 蒸汽阶段的EO应用是一种更有效的真菌控制方法.
- 这些发现支持使用EO作为农业中合成杀菌剂的可持续替代品.
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