期刊
FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT
卷 30, 期 8, 页码 1407-1414出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/19440049.2013.790087
关键词
LC-Orbitrap MS; masked mycotoxin; trichothecene; Fusarium; corn
Masked mycotoxins (mycotoxin glucosides) derived from type A trichothecenes were detected in commercially available corn powder reference material. These new glucosides were identified as neosolaniol-glucoside (NESGlc) and diacetoxyscirpenol-glucoside (DASGlc) on the basis of accurate mass measurements of characteristic ions and fragmentation patterns using high-resolution liquid chromatography-Orbitrap mass spectrometric (LC-Orbitrap MS) analysis. Although the absolute structure was not clarified, 3-OH glucosylation appeared to be the most probable when considering the structures of neosolaniol and diacetoxyscirpenol and the fragmentation profiles of these masked mycotoxins. Concomitant detection of deoxynivalenol-3-glucoside, the most well-known masked mycotoxin derived from the type B trichothecene, deoxynivalenol, in the identical material further supports this probability.
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