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Antifungal activity of s-methyl butanethioate against Botrytis cinerea, preparation of slow-release fresh-keeping card and its application to control gray mold of peach fruit

文献类型： 外文期刊

作者： Wang, Zhimin 1 ; Huang, Mingming 1 ; Dai, Mei 1 ; Tian, Dandan 4 ; Shi, Yingying 1 ; Wu, Bin 2 ; Zhang, Zheng 2 ; Song, Zunyang 1 ; Shi, Jingying 1 ;

作者机构： 1.Shandong Agr Univ, Coll Food Sci & Engn, Key Lab Food Nutr & Hlth Shandong Prov, Tai An, Peoples R China

2.Xinjiang Acad Agr Sci, Inst Agroprod Storage & Proc, Urumqi, Xinjiang, Peoples R China

3.Xinjiang Acad Agr Sci, Xinjiang Key Lab Proc & Preservat Agr Prod, Urumqi, Xinjiang, Peoples R China

4.Zichuan Dist Inspect & Test Ctr, Zibo 255100, Shandong, Peoples R China

关键词： Peach fruit; Gray mold; S-methyl butanethioate; Inhibitory effect; Fresh-keeping card

期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：6.8； 五年影响因子：7.5 ）

ISSN： 0925-5214

年卷期： 2025 年 230 卷

页码：

收录情况： SCI

摘要： Peach fruit is highly susceptible to decay caused by Botrytis cinerea. Volatile compounds have attracted considerable attention due to their safety and practical application advantages. S-methyl butanethioate, a volatile organic compound, is biosynthesized by microorganisms and plants. In this study, fumigation with synthetic s-methyl butanethioate at 50, 100, 200 and 300 mu L/L effectively inhibited mycelial growth and conidial germination of B. cinerea and disease incidence of gray mold on peach fruit in a concentration-dependent manner. Furthermore, s-methyl butanethioate induced conidial apoptosis by causing the accumulation of reactive oxygen species (ROS) and exacerbating mitochondrial damage. To address the limitations in solubility, stability, and volatility of s-methyl butanethioate, a slow-release fresh-keeping card was prepared by embedding s-methyl butanethioate into (3-cyclodextrin. Scanning electron microscopy (SEM) and Fourier transform-infrared spectroscopy (FT-IR) confirmed the successful embedding of s-methyl butanethioate into the cavity of (3-cyclo-dextrin, forming the encapsulated structure of the inclusion complex. Notably, the release of s-methyl butanethioate from the fresh-keeping card was delayed for 15 d and the antifungal effect was stronger than direct fumigation with s-methyl butanethioate. Moreover, the fresh-keeping card application prevented surface damage to peach fruit caused by direct fumigation. Therefore, the fresh-keeping card loaded with encapsulated s-methyl butanethioate not only enhanced stability but also extended antifungal efficacy, outperforming the traditional un-encapsulated form. Therefore, this study demonstrates that fresh-keeping card loaded with natural components might serve as an alternative to synthetic chemical fungicides for controlling postharvest diseases of fruit and vegetables.

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