食品科学2016，Vol.37Issue(18)：164-170,7.DOI:10.7506/spkx1002-6630-201618027
臭氧降解污染小麦中呕吐毒素的效果及降解产物推测
Efficacy of Deoxynivalenol Detoxification by Ozone Treatment in Wheat and Prediction of Degradation Products
摘要
Abstract
In this study, we used ozone to reduce deoxynivalenol (DON) in contaminated wheat, and the ozonation products were deduced using ultra performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC Q-TOF MS). The results showed that DON content in whole wheat lfour decreased more quickly than in wheat kernels. For wheat with a moisture content of 20.10%, DON content was reduced from 3.89 mg/kg to 0.83 mg/kg after 100 mg/L ozone treatment for 60 min. The kinetic model constants with different ozone concentrations showed the decreasing order of k100 mg/L>k75 mg/L>k50 mg/L>k25 mg/L, which was consistent with the experimental results. According to the mass spectral and ion fragmentation information from UPLC Q-TOF, possible ozonation products were proposed. The m/z of the major products were 344.948 1, 329.205 0, 311.191 8, 311.190 7 and 346.240 4, respectively.关键词
小麦/呕吐毒素/臭氧/动力学/降解产物Key words
deoxynivalenol/ozone/kinetic/degradation products分类
轻工纺织引用本文复制引用
王莉,罗颖鹏,罗小虎,王韧,李永富,李亚男,邵慧丽,陈正行..臭氧降解污染小麦中呕吐毒素的效果及降解产物推测[J].食品科学,2016,37(18):164-170,7.基金项目
公益性行业（粮食）科研专项（201313005）；公益性行业（农业）科研专项（201203037）；国家自然科学基金面上项目（31371874；31471616）；国家自然科学基金青年科学基金项目（31101383；31201381；31501579）；江苏省博士后基金项目（1501078B）；国家国际科技合作专项 （）
