Industrial-Scale Cleaning Solutions for the Reduction of Fusarium Toxins in Maize
Author:
Pascale MichelangeloORCID, Logrieco Antonio F., Lippolis VincenzoORCID, De Girolamo AnnalisaORCID, Cervellieri Salvatore, Lattanzio Veronica M. T.ORCID, Ciasca BiancamariaORCID, Vega Anna, Reichel Mareike, Graeber Matthias, Slettengren Katarina
Abstract
Grain cleaning is the most effective non-destructive post-harvest mitigation strategy to reduce high levels of mycotoxins on account of the removal of mold-infected grains and grain fractions with high mycotoxin content. In this study, the reduction in the concentration of some co-occurring Fusarium toxins in maize, namely deoxynivalenol (DON), zearalenone (ZEA) and fumonisins B1 and B2 (FBs), was evaluated at an industrial-scale level by mechanical removal (sieving and density separation) of dust, coarse, small, broken, shriveled and low-density kernels and/or optical sorting of defected kernels. Samples were dynamically collected according to the Commission Regulation No. 401/2006 along the entire process line. Mycotoxin analyses of water–slurry aggregate samples were performed by validated LC methods. Depending on the contamination levels in raw incoming maize, the overall reduction rates ranged from 36 to 67% for DON, from 67 to 87% for ZEA and from 27 to 67% for FBs. High levels of DON, ZEA and FBs were found in all rejected fractions with values, respectively, up to 3030%, 1510% and 2680%, compared to their content in uncleaned maize. Results showed that grain cleaning equipment based on mechanical and or optical sorting technologies can provide a significant reduction in Fusarium toxin contamination in maize.
Funder
SOCIETAL CHALLENGES—Food security, sustainable agriculture and forestry, marine, maritime and inland water research, and the bioeconomy
Subject
Health, Toxicology and Mutagenesis,Toxicology
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