Factors during Production of Cereal-Derived Feed That Influence Mycotoxin Contents

Mycotoxins are naturally present in cereal-based feed materials; however, due to adverse effects on animal health, their presence in derived animal feed should be minimized. A systematic literature search was conducted to obtain an overview of all factors from harvest onwards influencing the presenc...

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Main Authors: Yvette Hoffmans, Sara Schaarschmidt, Carsten Fauhl-Hassek, H.J. van der Fels-Klerx
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Toxins
Subjects:
Online Access:https://www.mdpi.com/2072-6651/14/5/301
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author Yvette Hoffmans
Sara Schaarschmidt
Carsten Fauhl-Hassek
H.J. van der Fels-Klerx
author_facet Yvette Hoffmans
Sara Schaarschmidt
Carsten Fauhl-Hassek
H.J. van der Fels-Klerx
author_sort Yvette Hoffmans
collection DOAJ
description Mycotoxins are naturally present in cereal-based feed materials; however, due to adverse effects on animal health, their presence in derived animal feed should be minimized. A systematic literature search was conducted to obtain an overview of all factors from harvest onwards influencing the presence and concentration of mycotoxins in cereal-based feeds. The feed production processes covered included the harvest time, post-harvest practices (drying, cleaning, storage), and processing (milling, mixing with mycotoxin binders, extrusion cooking, ensiling). Delayed harvest supports the production of multiple mycotoxins. The way feed materials are dried after harvest influences the concentration of mycotoxins therein. Applying fungicides on the feed materials after harvest as well as cleaning and sorting can lower the concentration of mycotoxins. During milling, mycotoxins might be redistributed in cereal feed materials and fractions thereof. It is important to know which parts of the cereals are used for feed production and whether or not mycotoxins predominantly accumulate in these fractions. For feed production, mostly the milling fractions with outer parts of cereals, such as bran and shorts, are used, in which mycotoxins concentrate during processing. Wet-milling of grains can lower the mycotoxin content in these parts of the grain. However, this is typically accompanied by translocation of mycotoxins to the liquid fractions, which might be added to by-products used as feed. Mycotoxin binders can be added during mixing of feed materials. Although binders do not remove mycotoxins from the feed, the mycotoxins become less bioavailable to the animal and, in the case of food-producing animals, to the consumer, lowering the adverse effects of mycotoxins. The effect of extruding cereal feed materials is dependent on several factors, but in principle, mycotoxin contents are decreased after extrusion cooking. The results on ensiling are not uniform; however, most of the data show that mycotoxin production is supported during ensiling when oxygen can enter this process. Overall, the results of the literature review suggest that factors preventing mycotoxin production have greater impact than factors lowering the mycotoxin contents already present in feed materials.
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spelling doaj.art-c15c8ef3874449bab453b66508c80cfe2023-11-23T13:22:31ZengMDPI AGToxins2072-66512022-04-0114530110.3390/toxins14050301Factors during Production of Cereal-Derived Feed That Influence Mycotoxin ContentsYvette Hoffmans0Sara Schaarschmidt1Carsten Fauhl-Hassek2H.J. van der Fels-Klerx3Wageningen Food Safety Research, Akkermaalsbos 2, 6708 WB Wageningen, The NetherlandsDepartment Safety in the Food Chain, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Str. 8-10, D-10589 Berlin, GermanyDepartment Safety in the Food Chain, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Str. 8-10, D-10589 Berlin, GermanyWageningen Food Safety Research, Akkermaalsbos 2, 6708 WB Wageningen, The NetherlandsMycotoxins are naturally present in cereal-based feed materials; however, due to adverse effects on animal health, their presence in derived animal feed should be minimized. A systematic literature search was conducted to obtain an overview of all factors from harvest onwards influencing the presence and concentration of mycotoxins in cereal-based feeds. The feed production processes covered included the harvest time, post-harvest practices (drying, cleaning, storage), and processing (milling, mixing with mycotoxin binders, extrusion cooking, ensiling). Delayed harvest supports the production of multiple mycotoxins. The way feed materials are dried after harvest influences the concentration of mycotoxins therein. Applying fungicides on the feed materials after harvest as well as cleaning and sorting can lower the concentration of mycotoxins. During milling, mycotoxins might be redistributed in cereal feed materials and fractions thereof. It is important to know which parts of the cereals are used for feed production and whether or not mycotoxins predominantly accumulate in these fractions. For feed production, mostly the milling fractions with outer parts of cereals, such as bran and shorts, are used, in which mycotoxins concentrate during processing. Wet-milling of grains can lower the mycotoxin content in these parts of the grain. However, this is typically accompanied by translocation of mycotoxins to the liquid fractions, which might be added to by-products used as feed. Mycotoxin binders can be added during mixing of feed materials. Although binders do not remove mycotoxins from the feed, the mycotoxins become less bioavailable to the animal and, in the case of food-producing animals, to the consumer, lowering the adverse effects of mycotoxins. The effect of extruding cereal feed materials is dependent on several factors, but in principle, mycotoxin contents are decreased after extrusion cooking. The results on ensiling are not uniform; however, most of the data show that mycotoxin production is supported during ensiling when oxygen can enter this process. Overall, the results of the literature review suggest that factors preventing mycotoxin production have greater impact than factors lowering the mycotoxin contents already present in feed materials.https://www.mdpi.com/2072-6651/14/5/301processinginfluential factorsaflatoxindeoxynivalenolfumonisinHT-2
spellingShingle Yvette Hoffmans
Sara Schaarschmidt
Carsten Fauhl-Hassek
H.J. van der Fels-Klerx
Factors during Production of Cereal-Derived Feed That Influence Mycotoxin Contents
Toxins
processing
influential factors
aflatoxin
deoxynivalenol
fumonisin
HT-2
title Factors during Production of Cereal-Derived Feed That Influence Mycotoxin Contents
title_full Factors during Production of Cereal-Derived Feed That Influence Mycotoxin Contents
title_fullStr Factors during Production of Cereal-Derived Feed That Influence Mycotoxin Contents
title_full_unstemmed Factors during Production of Cereal-Derived Feed That Influence Mycotoxin Contents
title_short Factors during Production of Cereal-Derived Feed That Influence Mycotoxin Contents
title_sort factors during production of cereal derived feed that influence mycotoxin contents
topic processing
influential factors
aflatoxin
deoxynivalenol
fumonisin
HT-2
url https://www.mdpi.com/2072-6651/14/5/301
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