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Fumonisin Distribution in Maize Dry-Milling Products and By-Products: Impact of Two Industrial Degermination Systems

机译：伏马菌素在玉米干磨产品和副产品中的分布：两种工业去萌系统的影响

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摘要

In temperate areas, the main limitation to the use of maize in the food chain is its contamination by B-series fumonisins (FBs) during cultivation. Since the content of this group of mycotoxins may be distributed unevenly after milling, the aim of this study was to compare the distribution of FBs in maize fractions derived from two industrial dry-milling processes, that is, a dry-degermination (DD) system and a tempering-degermination (TD) system. Grain cleaning reduces FBs by about 42%. The germ of the two degermination processes showed a similar FB content of kernel after cleaning. Conversely, an animal feed flour resulted in a FB content that was two times higher than whole grain before cleaning. A significant FB reduction was observed in the milling fractions in both processes, with a higher reduction in the TD system than in the DD one. The average decontamination respect to uncleaned kernels in the DD process was 50%, 83% and 87%, for maize flour, break meal and pearl meal, respectively, while it was 78%, 88% and 94% in the TD process for small, medium and flaking grits, respectively. Among the milling fractions, the flaking grits with the highest particle size resulted in the highest FB reduction.
机译：在温带地区，在食物链中使用玉米的主要限制是玉米在种植过程中受到B系列伏马菌素（FBs）的污染。由于碾磨后这组霉菌毒素的含量可能分布不均，因此本研究的目的是比较FBs在两个工业干磨工艺即干法脱胶（DD）系统衍生的玉米馏分中的分布和回火脱胶（TD）系统。谷物清洁可将FBs减少约42％。清洗后，两个脱萌过程的细菌显示出相似的果仁FB含量。相反，动物饲料粉的FB含量是清洁前全谷物的FB含量的两倍。在这两个过程中，在研磨过程中都观察到了显着的FB减少，TD系统的减少比DD系统的减少更大。在DD工艺中，玉米粉，零食和珍珠粉对未清洗果仁的平均去污率分别为50％，83％和87％，而在TD工艺中，对小玉米粉的去污率分别为78％，88％和94％。 ，中度和片状粗粒。在研磨级分中，具有最高粒度的片状砂砾导致了最大的FB减少量。

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