| 低温等离子体降解呕吐毒素效果评价及降解规律解析 |
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| 引用本文： | 邢常瑞,孔志康,洪静,赵璐玲,陈露语,袁建,严文静.低温等离子体降解呕吐毒素效果评价及降解规律解析[J].中国粮油学报,2022,37(4):1-7. |
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| 作者姓名： | 邢常瑞 孔志康 洪静 赵璐玲 陈露语 袁建 严文静 |
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| 作者单位： | 南京财经大学,南京财经大学,南京财经大学,南京农业大学,南京农业大学,南京财经大学,南京农业大学 |
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| 基金项目： | 国家重点研发计划 （2018YFD0700802）江苏省大学生创新创业训练计划（202010307125Y） 江苏省研究生科研创新计划（SJCX20_0463、KYCX20-1342） |
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| 摘 要： | 小麦赤霉病导致的真菌毒素污染是影响小麦质量安全的关键因素,如何削减呕吐毒素(DON)污染是当前的急迫需求.本研究利用等离子体处理技术可降解乙腈水溶液中的DON,并通过胶体金定量试纸条和液质联用仪进行了分析.通过高分辨质谱测定分析,推导出12种降解产物.进一步对去环氧基降解产物质谱碎片峰进行匹配并推导其裂解途径.结果表明...
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| 关 键 词： | 呕吐毒素 低温等离子体 降解产物 结构解析 |
| 收稿时间： | 2021/5/13 0:00:00 |
| 修稿时间： | 2021/8/25 0:00:00 |
Evaluation of the effect of low-temperature plasma on the degradation of vomitoxin and analysis of degradation law |
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| Abstract: | Mycotoxin contamination caused by wheat scab is a key factor affecting the quality and safety of wheat. In this study, vomitoxin in 50% acetonitrile aqueous solution could be degraded by plasma treatment, determined by colloidal gold quantitative test strips and liquid chromatography-tandem mass spectrometry. Twelve degradation products were identified by high-resolution mass spectrometry measurements after degradation product structures analysis. The cleavage pathways were further analyzed by matching the mass fragmentation peaks of the low toxicity de-epoxy degradation products. The results showed a good match between the predicted molecular structures and the detected secondary mass spectrometry data, which confirmed the structural information of the degradation products. Finally, the degradation effect of vomitoxin in wheat extracts was evaluated by colloidal gold test strips, and it was found that the degradation efficiency was over 90% after 2 min treatment. This study will support the use of plasma to degrade vomitoxin in wheat and feed fermentation solutions and related products. |
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| Keywords: | Vomitoxin low-temperature plasma degradation products structures analysis |
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