The Potential of Alternaria Toxins Production by A. alternata in Processing Tomatoes

文献类型： 外文期刊

第一作者： Qin, Qiaomei

作者： Qin, Qiaomei;Jia, Qinlan;Duan, Shuaishuai;Wang, Cheng;Qin, Qiaomei;Fan, Yingying;Jia, Qinlan;Duan, Shuaishuai;Liu, Fengjuan;Jia, Binxin;Guo, Wanhui;Wang, Cheng;Wang, Guangquan

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关键词： Alternaria toxins; conjugated mycotoxins; field experiment; in vivo experiment; processing tomatoes

期刊名称：TOXINS （ 影响因子：5.075； 五年影响因子：5.305 ）

ISSN：

年卷期： 2022 年 14 卷 12 期

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收录情况： SCI

摘要： As a filamentous and spoilage fungus, Alternaria spp. can not only infect processing tomatoes, but also produce a variety of mycotoxins which harm the health of human beings. To explore the production of Alternaria toxins in processing tomatoes during growth and storage, four main Alternaria toxins and four conjugated toxins were detected by ultrahigh-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) and ultra-performance liquid chromatography-ion mobility quadrupole time-of-flight mass spectrometry (UPLC-IMS QToF MS) in processing tomatoes on different days after being inoculated with A. alternata. The results show that the content of Alternaria toxins in an in vivo assay is higher than that under field conditions. Tenuazonic acid (TeA) is the predominant toxin detected in the field (205.86 similar to 41,389.19 mu g/kg) and in vivo (7.64 similar to 526,986.37 mu g/kg) experiments, and the second-most abundant toxin is alternariol (AOH). In addition, a small quantity of conjugated toxins, AOH-9-glucoside (AOH-9-Glc) and alternariol monomethyl ether-3-glucoside (AME-3-Glc), were screened in the in vivo experiment. This is the first time the potential of Alternaria toxins produced in tomatoes during the harvest period has been studied in order to provide data for the prevention and control of Alternaria toxins.

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