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Toxins 2018, 10(8), 319; https://doi.org/10.3390/toxins10080319

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

1
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
2
National Agricultural Products Quality Management Service, 141, Yongjeon-ro, Gimcheon-si 39660, Gyeongsangbuk-do, Korea
3
Department of Integrated Biomedical and Life Science, Korea University, Seoul 02841, Korea
These authors contributed equally to this work.
*
Authors to whom correspondence should be addressed.
Received: 9 July 2018 / Revised: 27 July 2018 / Accepted: 1 August 2018 / Published: 6 August 2018
(This article belongs to the Section Mycotoxins)
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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). Fusarium 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. View Full-Text
Keywords: corn; corn by-products; wet-milling; mycotoxin; LC-MS/MS analysis corn; corn by-products; wet-milling; mycotoxin; LC-MS/MS analysis
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Park, J.; Kim, D.-H.; Moon, J.-Y.; An, J.-A.; Kim, Y.-W.; Chung, S.-H.; Lee, C. 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 2018, 10, 319.

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