AI Article Synopsis
- A rapid QuEChERS-based method was developed to efficiently extract and analyze 43 mycotoxins in chestnut and jujube using acetonitrile and dispersive solid-phase extraction for clean-up.
- * The study utilized central composite design for optimization and quantified mycotoxins with UHPLC-MS/MS, employing stable isotope standards and matrix-matched curves for accurate results.
- * In addition to commonly monitored mycotoxins, the research identified significant contamination levels of zearalenone, beauvericin, enniatin B, and alternariol monomethyl ether, especially in chestnut flour.
Article Abstract
A rapid and efficient QuEChERS-based preparation method was established for the simultaneous determination of 43 mycotoxins in chestnut and jujube (Chinese date). The contaminants were extracted using acetonitrile and subjected to dispersive solid-phase extraction for further clean-up. Central composite design was conducted to overcome the limitations of conventional optimization methods, and assess the interaction effects between variables and reach the true optimal conditions. Quantitative analysis was performed on UHPLC-MS/MS with the aid of stable isotope internal standards and matrix-matched curves, whereas qualitative identification was carried out by using high-resolution MS based on exact masses and fragmentation patterns. In addition to the mycotoxins that are routinely monitored (like aflatoxins, ochratoxin A, etc.), this study also revealed a non-negligible contamination of zearalenone (56/170), beauvericin (52/170), enniatin B (43/170), and alternariol monomethyl ether (42/170) in chestnut and jujube, especially the chestnut flour.
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| http://dx.doi.org/10.1016/j.chroma.2021.462486 | DOI Listing |
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