中文摘要：小麦是一年生作物，在冬季和春季种植，易受多种致病菌特别是真菌感染，通常用杀菌剂防治。小麦也是人类消费最多的谷物之一，易受霉菌毒素和杀菌剂的污染。本研究用经验证的LC-MS分析法同步检测感染了赤霉病并用杀菌剂处理的小麦其籽粒中霉菌毒素和杀菌剂残留的情况，并探讨杀菌剂应用和霉菌毒素产生之间的关系。所用方法的所有参数均在AOAC和ANVISA规定范围内。结果发现脱氧雪腐镰刀菌烯醇是小麦籽粒中最普遍存在的霉菌毒素，氟环唑是浓度最高的杀菌剂残留。所有经杀菌剂处理的样品中AFB2的产生均比对照（不处理）增加了；而AFB1和脱氧雪腐镰刀菌烯醇情况则相反，比对照降低了。
 
外文摘要：Wheat (Triticum aestivum) is an annual crop, cultivated in the winter and spring and susceptible to several pathogens, especially fungi, which are managed with fungicides. It is also one of the most consumed cereals, and can be contaminated by mycotoxins and fungicides. The objective of this study was to validate an analytical method by LC-MS for simultaneous determination of mycotoxins and fungicide residues in wheat grains susceptible to fusarium head blight treated with fungicides, and to evaluate the relationship between fungicide application and mycotoxin production. All parameters of the validated analytical method were within AOAC and ANVISA limits. Deoxynivalenol was the prevalent mycotoxin in wheat grain and epoxiconazole was the fungicide residue found in the highest concentration. All fungicidal treatments induced an increase in AFB2 production when compared to the control (without application). AFB1 and deoxynivalenol, on the contrary, were reduced in all fungicide treatments compared to the control.
外文关键词：Triticum aestivum；Food safety；Mycotoxins；Pesticide residues
作者：da Luz, SR；Pazdiora, PC；Dallagnol, LJ；Dors, GC；Chaves, FC
作者单位：Univ Fed Pelotas
期刊名称：FOOD CHEMISTRY
期刊影响因子：4.052
出版年份：2017
出版刊次：1
点击下载：经验证的LC-MS方法用于检测杀菌剂处理后小麦籽粒中的霉菌毒素和杀菌剂残留