The characteristics of deoxynivalenol in silage fermentation

本研究主要研究脱氧雪腐镰刀菌烯醇(DON)在青贮料处理过程中的特性。作为初步实验，考察了DON在不同pH溶液中的稳定性。结果表明，DON在弱酸性和中性溶液中稳定，在弱碱性溶液中明显还原。为了评价玉米青贮过程中DON的特性，将禾谷镰刀菌孢子或禾谷镰刀菌模塑玉米粒的孢子添加到全株玉米中青贮30d。结果表明，在青贮期和青贮期后7天，各处理间DON浓度无明显变化。

This research focused on the characteristics of deoxynivalenol (DON) during silage treatment. As preliminary experiment, stability of DON in different pH solution was tested. The results showed that DON was stable in mild acidic and neutral solution but reduced clearly in mild basic solution. To evaluate the characteristics of DON during silage, spores of F. graminearum or molded maize grain by F. graminearum was added to whole-crop maize and ensiled for 30day. It was revealed that DON concentration was not changed during ensiling and 7 days after ensiling among these treatments.