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选择挥发性标记物用于果中的皮腐烂,这种腐烂是由Phacidiopycnis washingtonensis引起的
Hinrich H F Holthusen1, Roland W S Weber1, Merete Edelenbos2
1Department of Food Science, Aarhus University, Agro Food Park 48, 8200, Aarhus, Denmark; Esteburg Fruit Research and Advisory Centre, Moorende 53, 21635, Jork, Germany.
Fungal biology
|January 18, 2025
概括
早期检测果真菌腐烂是非常重要的. 这项研究确定了Phacidiopycnis washingtonensis产生的特定挥发性有机化合物 (VOC),提供了一种用于早期检测果储存腐烂的新方法.
科学领域:
- 农业科学 农业科学
- 菌类学 菌类学是指菌类学.
- 分析化学 分析化学
背景情况:
- 收获后的果损失是显著的,由于真菌水果腐烂.
- 在散装储存中早期检测真菌感染是具有挑战性的.
- 华盛顿的法西迪奥皮克尼斯 (Phacidiopycnis washingtonensis) 是一个常见的果储存腐烂的真菌.
研究的目的:
- 开发一种方法来识别被P. washingtonensis感染的果的挥发性标记物.
- 为了区分感染和未感染果的VOC资料.
- 评估VOC分析对于早期腐烂检测的潜力.
主要方法:
- 在阿加和果果上的P. washingtonensis的注射.
- 使用固相微提取,对挥发性有机化合物 (VOC) 进行头部空间采样.
- 用气体染色学-质谱学分析挥发性有机物.
主要成果:
- 由P. washingtonensis的真菌殖民增加了酒精和各种化合物的排放,同时减少了化物和.
- 37个VOC在接种的中升高;9个与真菌生长 (体外和体内) 一致相关.
- 在自然感染的果中检测到29个VOC的度更高.
结论:
- 该研究确定了特定的VOCs,表明果中P. washingtonensis感染.
- 挥发性有机化合物分析显示,果储存腐烂的非侵入性早期预警系统具有前景.
- 这种方法可以通过及时干预来帮助减少收获后损失.
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