Abstract The objective of the present study was to evaluate the effect of a hydrothermal treatment on the residual levels of aflatoxins (G2, G1, B2, B1) and fumonisin B1 in cornmeal, and to investigate the chemical constituents of cornmeal that could affect potential reductions during in vitro digestion. For this purpose, cornmeal (fine and coarse) were spiked with mycotoxins, and then subjected to hydrothermal treatment. Mycotoxin quantification was determined before and after the treatments; while in vitro mycotoxins bioaccessibility was evaluated after the hydrothermal treatments. Treated samples were also characterized based on their macro components and resistant starch. The hydrothermal treatment of mycotoxin-spiked coarse cornmeal resulted in 36–52% reduction of the aflatoxin and 39% of fumonisin B1 levels; while fine cornmeal showed reductions of 0–41% aflatoxin and 59% fumonisin B1 levels. The reduction of the aflatoxins G2, B2 and B1 was significantly correlated (p

中文翻译：

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玉米面的抗性淀粉和水热处理：黄曲霉毒素和伏马菌素 B1 减少和生物可及性的因素

摘要 本研究的目的是评估水热处理对玉米面中黄曲霉毒素（G2、G1、B2、B1）和伏马菌素 B1 的残留水平的影响，并调查玉米面中可能影响潜在减少量的化学成分。在体外消化过程中。为此，在玉米面（细粉和粗粉）中加入霉菌毒素，然后进行水热处理。处理前后测定霉菌毒素的定量；而在水热处理后评估了体外真菌毒素的生物可及性。处理过的样品还根据其宏观成分和抗性淀粉进行了表征。对添加了霉菌毒素的粗玉米粉进行水热处理后，黄曲霉毒素和伏马菌素 B1 的含量降低了 36-52%；而细玉米粉的黄曲霉毒素和伏马菌素 B1 水平降低了 0-41%。黄曲霉毒素 G2、B2 和 B1 的减少显着相关（p