Enantioselective Behaviors of Chiral Fungicide Penthiopyrad in Five Kinds of Crops and Whole-Age Dietary Risk Assessments
文献类型： 外文期刊
作者： Diao, Ziyang 1 ; Di, Shanshan 1 ; Liu, Zhenzhen 1 ; Cang, Tang 1 ; Zhao, Huiyu 1 ; Wang, Zhiwei 1 ; Qi, Peipei 1 ; Zhang, Chenghui 3 ; Xu, Hao 1 ; Wang, Xinquan 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Agro Prod Safety & Nutr, State Key Lab Managing Biot & Chem Threats Qual &, Key Lab Detect Pesticide Residues & Control Zhejia, Hangzhou 310021, Peoples R China
2.Agr Minist Key Lab Pesticide Residue Detect, Hangzhou 310021, Peoples R China
3.Hainan Univ, Coll Food Sci & Engn, Haikou 570100, Peoples R China
关键词： chiral penthiopyrad; enantioselective dissipation; crops; acute risks; chronic risks
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 23 期
页码：
收录情况： SCI
摘要： Penthiopyrad is a widely used succinic dehydrogenaseinhibitorfungicide with two enantiomers, while the data on its enantioselectivebehaviors in crops are limited. The enantioselective dissipation maydirectly or indirectly expose people to the preferentially residualenantiomer, which may affect the dietary risks of chiral penthiopyrad.In this study, the enantioselective behaviors of chiral penthiopyradin five kinds of crops and whole-age dietary risk assessments wereconducted. The dissipation half-lives of penthiopyrad enantiomerswere in the range of 0.48-13.7 days. S-(+)-Penthiopyradwas preferentially dissipated in soybean plants, soybean, peanut kernel,peanut shell, celery, tomato, and soil, which was opposite in cabbage.The opposite enantioselective residue might expose people to differentenantiomer, which bring more complex risks. On the 35th day (the harvesttime), the residue concentrations of penthiopyrad were all lower thanMRLs except celery. For acute dietary intake risks, the children aged2-7 suffered the highest risks, especially for cabbage (RQ(a), 138%) and celery (RQ(a), 140%), which were unacceptable.For other people, the acute dietary intake risks of rac-penthiopyrad in cabbage and celery were also very high and in therange of 88.6-94.8%, which should raise concern. The chronicdietary intake risks of rac-penthiopyrad in the allcrops for groups of Chinese population with different ages and genderswere acceptable (HQ, 0.0006-29.1%), and the risks were thehighest in celery, especially for children aged 2-7. This studycould provide data support for the environmental behaviors and riskassessments of penthiopyrad at the enantiomeric level.
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