Distribution Analysis of Twelve Mycotoxins in Corn and Corn-Derived Products by LC-MS/MS to Evaluate the Carry-Over Ratio during Wet-Milling.

Toxins (Basel)

Advanced Food Safety Research Group, BrainKorea21 Plus, Department of Food Science and Technology, Chung-Ang University, 4726, Seodong-daero, Anseong-si 17546, Gyeonggi-do, Korea.

Published: August 2018


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Article Abstract

This study investigated the distribution of twelve mycotoxins (aflatoxins B₁, B₂, G₁, and G₂; ochratoxin A; fumonisins B₁ and B₂; deoxynivalenol; nivalenol; zearalenone; T-2 toxin; and HT-2 toxin) in corn and corn by-products (corn bran, cornstarch, corn gluten, corn gluten feed, corn germ, light steep water, and corn steep liquor) produced by wet-milling in Korea. Fifty-two samples were collected from three factories producing cornstarch and other corn by-products. The samples were pretreated on an immunoaffinity column (IAC), and then the levels of the 12 mycotoxins were analyzed simultaneously by liquid chromatography-coupled triple-quadrupole mass spectrometry (LC-MS/MS). mycotoxins were mainly found in raw corn and corn gluten feed samples. Other mycotoxins-such as aflatoxins, ochratoxin A, and HT-2 toxin-were detected in tiny amounts below the limit of quantification (LOQ) in cornstarch, corn germ, and corn bran. Ochratoxin A and nivalenol were mainly carried over into cornstarch. Aflatoxin B₁, deoxynivalenol, T-2 toxin, HT-2 toxin, and the fumonisins were concentrated in corn gluten feed. Zearalenone was evenly distributed in all corn by-products except cornstarch during the milling process.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6115783PMC
http://dx.doi.org/10.3390/toxins10080319DOI Listing

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