Residual Behaviors of Six Pesticides in Shiitake from Cultivation to Postharvest Drying Process and Risk Assessment

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• 作者：Tan Liu ; Cunzheng Zhang ; Jing Peng ; Zhiyong Zhang ; Xing Sun ; Hui Xiao ; Ke Sun ; Leiqing Pan ; Xianjin Liu ; Kang Tu
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2016
• 出版时间：November 30, 2016
• 年：2016
• 卷：64
• 期：47
• 页码：8977-8985
• 全文大小：442K
• ISSN：1520-5118

文摘

The dissipation of six pesticides (carbendazim, thiabendazole, procymidone, bifenthrin, λ-cyhalothrin, and β-cyfluthrin) in shiitakes from cultivation to postharvest drying process was investigated, and the dietary exposure risk was estimated thereafter. The field trial study indicates that the half-lives of carbendazim, thiabendazole, and procymidone were much shorter than those of bifenthrin, λ-cyhalothrin, and β-cyfluthrin. Furthermore, the effects of two drying processes on the residues and processing factors (PFs) were investigated. The results showed that hot-air drying resulted in higher residues than sunlight exposure drying. Both drying processes led to pesticide residue concentration (with PF > 1), except for thiabendazole upon sunlight exposure treatment. The estimated daily intakes (EDIs) ranged from 0.06% of the acceptable daily intake (ADI) for thiabendazole to 42.43% of the ADI for procymidone. The results show that the six pesticide residues in dried shiitakes are still within acceptable levels for human consumption on the basis of a dietary risk assessment.