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Simultaneous determination of 13 mycotoxins in feedstuffs using QuEChERS extraction

Hyeong-Wook Jo, Min-Kyu Park, Hyo-Min Heo, Hwang-Ju Jeon, Sung-Deuk Choi, Sung-Eun Lee, Joon-Kwan Moon
Published: 5 April 2021
Applied Biological Chemistry , Volume 64, pp 1-12; doi:10.1186/s13765-021-00602-9

Abstract: Mycotoxins are secondary metabolites produced by various fungi and are known to have a significant negative impact on human and animal health. When feedstuffs are contaminated with mycotoxins, their toxicities may be caused a variety of diseases. In this study, the residual mycotoxins in feedstuffs were analyzed using LC–MS/MS incorporated with QuEChERS extraction. Analytical method validation was performed for LOD, LOQ, linearity, and recoveries with consideration of matrix effects prior to the residual analysis. They were all reached to the accepted range of validation level. Using 39 feedstuff samples (5 g) for mycotoxin analysis, nine samples were contaminated by four major mycotoxins such as fumonisin B1 (FB1), deoxynivalenol, fumonisin B2, and zearalenone. Among them, FB1 was detected at the highest concentration as 18.0943 mg/kg. The total sum of fumonisins in 39 samples did not exceed the maximum residual level (MRL) criterion set by Korean Food and Drug Administration. Altogether, intensive management of mycotoxins in Korean feedstuffs should be implemented with proper and routine monitoring, even their residual concentrations are not exceeded over the MRL levels because of high frequent detection found in this study.
Keywords: Mycotoxins / QuEChERS / LC–MS/MS / Feedstuffs / Fumonisines

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