Unravelling the inhibition mechanism of 1-octene-3-ol combined with 3-heptene-2-one on Aspergillus flavus and its application in the preservation of wolfberries

IF 6.4 1区农林科学 Q1 AGRONOMY Postharvest Biology and Technology Pub Date : 2025-02-18 DOI:10.1016/j.postharvbio.2025.113462

Lijun Ling , Rongxiu Mo , Wenyue Zhang , Yijuan Jiang , Fanjin Kong , Lijun Feng , Yao Li , Rui Yue , Yongpeng Zhou

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引用次数: 0

Abstract

The antifungal activity of six microbial-derived volatile organic compounds (VOCs) [ 3-hepten-2-one (Hep), cis-3-octen-1-ol, 3-methylvalerate, isovalerate, 1-octen-3-ol (Oct), and 2-methylbutyrate] against Aspergillus flavus was investigated by determining the minimum inhibitory concentration (MIC) and the fractional inhibitory concentration index (FICI). The results demonstrated that all 15 binary combinations of the VOCs presented additive effects against A. flavus. Among them, the combination of Hep and Oct, refers to C_OH, with concentrations of 2 μL L⁻¹ and 2.5 μL L⁻¹, respectively, displayed the most potent antifungal effect with the lowest concentration, in contrast to the individual MIC of Hep or Oct, which were reduced to 1/8 and 1/2. C_OH can induce membrane lipid peroxidation, enhance cell membrane permeability, and cause leakage of nucleic acids and proteins within the cell, and 1-octen-3-ol might play a leading role. Finally, applying C_OH at a concentration of 1/2 MIC_Oct + 1/4 MIC_Hep could effectively restrain the spread of A. flavus on wolfberries and exhibit excellent preservation effects. This study validates the antifungal effect of C_OH and may serve as a natural alternative to antimicrobial agents for post-harvest agricultural products.

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来源期刊

Postharvest Biology and Technology 农林科学-农艺学

CiteScore

12.00

自引率

11.40%

发文量

309

审稿时长

38 days

期刊介绍： The journal is devoted exclusively to the publication of original papers, review articles and frontiers articles on biological and technological postharvest research. This includes the areas of postharvest storage, treatments and underpinning mechanisms, quality evaluation, packaging, handling and distribution of fresh horticultural crops including fruit, vegetables, flowers and nuts, but excluding grains, seeds and forages. Papers reporting novel insights from fundamental and interdisciplinary research will be particularly encouraged. These disciplines include systems biology, bioinformatics, entomology, plant physiology, plant pathology, (bio)chemistry, engineering, modelling, and technologies for nondestructive testing. Manuscripts on fresh food crops that will be further processed after postharvest storage, or on food processes beyond refrigeration, packaging and minimal processing will not be considered.