Stereoselective, Diastereoselective Dissipation and Risk Assessment of Chiral Metconazole in Soybean, Peanut, Cabbage, Celery, Tomato, and Soil

文献类型： 外文期刊

第一作者： Di, Weixuan

作者： Di, Weixuan;Ge, Mengyuan;Ding, Wei;Di, Weixuan;Wang, Xinquan;Ge, Mengyuan;Cang, Tao;Wang, Zhiwei;Qi, Peipei;Liu, Zhenzhen;Zhao, Huiyu;Di, Shanshan;Wang, Xinquan;Cang, Tao;Wang, Zhiwei;Qi, Peipei;Liu, Zhenzhen;Zhao, Huiyu;Di, Shanshan

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关键词： metconazole stereoisomers; stereoselectivity; diastereoselectivity; vegetables; dissipation; risk assessment

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）

ISSN： 0021-8561

年卷期： 2023 年 71 卷 48 期

页码：

收录情况： SCI

摘要： The stereoselective behaviors and dietary risks of metconazole (MZE) in soil and five vegetables were investigated. The results showed that there was species-specific stereoselective and diastereoselective dissipation, and the half-lives ranged from 0.69 to 8.17 days. cis-(+)-1S,5R-MZE was preferentially dissipated in soybean pods, cabbages, celeries, and tomatoes, which was contrary to soybean plants and soil. trans-(+)-1R,5R-MZE was preferentially dissipated in peanut plants, peanut shells, celeries, and tomatoes, while trans-(-)-1S,5S-MZE was preferentially dissipated in soybean plants. cis-MZE was preferentially dissipated in the test vegetables and soil, except celery. The stereoisomeric excess changes were higher than 10%, indicating that the stereoselectivity and diastereoselectivity should be considered in the risk assessment of MZE in soybean plants, pods, and peanut plants. The acute and chronic dietary intake risks of rac-MZE for different groups of people were acceptable. The preferentially dissipated and high activity cis-(+)-1S,5R-MZE with lower toxicity might be suitable for application as monocase.

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