中文摘要：玉米赤霉烯酮(ZEA)，一种由多种镰刀菌产生的霉菌毒素，可在许多谷物及相关产品中找到。对人和动物都有毒。所以，许多国家都在食品和饲料原料方面采用法规来限制该污染物的暴露。本研究提出了一种多换向直流光电传感器，来测量不同谷物样品中的ZEA。研究表明，该方法的定量限非常低，完全能够实现欧盟规定的最大残留量检测，证明了其在饲料ZEA分析中的潜在应用。
外文摘要：Zearalenone (ZEA), a mycotoxin produced by several Fusarium molds, can be found in many cereals and related products. The toxicity of ZEA has been reported for both humans and animals. Therefore, many countries have adopted regulations in foods and feed materials to limit the exposure to this contaminant. In this paper, we propose a multicommutated flow-through optosensor
 to quantify ZEA in different cereal samples. ZEA was retained and pre-concentrated on C18 silica gel, and the use of the multicommutated flow manifold allowed the automated retention/desorption of ZEA on the solid microbeads by the use of appropriate carrier/eluting solutions, hence increasing the selectivity and sensitivity of the system. The native fluorescence of ZEA was recorded on the solid phase at λexc/λem of 265/465 nm/nm. A QuEChERS procedure was used to carry out the extraction of ZEA from different cereal samples (feedstuff materials). Recovery studies were performed to assess the accuracy of the method, obtaining recovery yields between 93% and 107% in all the analyzed samples. LC-MS was employed as reference method. The quantitation limit of the proposed method was low enough to fulfill the maximum residue levels established by the Commission of the European Communities, thus demonstrating its potential use for the analysis of ZEA in feedstuffs.
外文关键词：Zearalenone；Mycotoxin；Cereal；Maize；Multicommutated flow injection analysis；Optosensor
作者：Llorent-Martinez, EJ；Fernandez-Poyatos, MP；Ruiz-Medina, A
作者单位：Univ Jaen
期刊名称：TALANTA
期刊影响因子：4.035
出版年份：2019
出版刊次：1
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