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首页> 美国卫生研究院文献>Toxins >Effects of Increasing Concentrations of Sodium Sulfite on Deoxynivalenol and Deoxynivalenol Sulfonate Concentrations of Maize Kernels and Maize Meal Preserved at Various Moisture Content
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Effects of Increasing Concentrations of Sodium Sulfite on Deoxynivalenol and Deoxynivalenol Sulfonate Concentrations of Maize Kernels and Maize Meal Preserved at Various Moisture Content

机译：亚硫酸钠浓度升高对不同含水量下玉米籽粒和玉米粉中脱氧萘酚和脱氧萘酚磺酸盐含量的影响。

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摘要

Under moderate climatic conditions, deoxynivalenol (DON) contamination occurs frequently on cereals. Detoxification measures are required to avoid adverse effects on farm animals. In the present study, a wet preservation method with sodium sulfite (Na2SO3) and propionic acid was tested to titrate the optimum Na2SO3-dose for maximum DON reduction of contaminated maize kernels and meal and to examine the interaction between dose and moisture content in dependence on the preservation duration. The DON concentration decreased with increasing amounts of supplemented Na2SO3 and with increasing duration of the preservation period in a bi-exponential fashion. Additionally, the feed structure and moisture content had a significant influence on the decontaminating effect. Variants with 30% moisture content favored higher DON reduction rates compared to 14% moisture, but especially at low moisture contents, DON reduction was more pronounced in maize kernels than in maize meal. In addition to the decrease of DON, a concomitant formation of three different DON sulfonates was observed which differed in their formation pattern over the time course of preservation. The overall results and statistical analysis clarified that Na2SO3 addition of 10 g/kg maize at 30% moisture for eight days was necessary to obtain a complete DON reduction.
机译：在中等气候条件下，谷物中的脱氧雪茄烯醇（DON）污染经常发生。需要采取排毒措施以避免对农场动物的不利影响。在本研究中，使用亚硫酸钠（Na2SO3）和丙酸的湿法保存方法进行了测试，以滴定最佳的Na2SO3剂量，以最大程度地减少受污染的玉米粒和粕的DON含量，并检查剂量和水分含量之间的相互作用保存期限。 DON浓度随添加的Na2SO3量的增加和保存期持续时间的增加呈双指数下降。另外，进料结构和水分含量对去污效果有重要影响。水分含量为30％的变体与水分含量为14％的变种相比，倾向于较高的DON减少率，但尤其是在水分含量较低的情况下，玉米粒中的DON减少比玉米粉中的减少得多。除了减少DON之外，还观察到三种不同的DON磺酸盐的伴随形成，它们在保存过程中的形成方式不同。总体结果和统计分析表明，必须添加30 g水分的10 g / kg玉米Na2SO3，持续8天，才能完全减少DON。

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