Dissipation and Migration of Pyrethroids in Auricularia polytricha Mont. from Cultivation to Postharvest Processing and Dietary Risk

文献类型： 外文期刊

第一作者： Xiao, Jin-Jing

作者： Xiao, Jin-Jing;Wu, Yan-Can;Shi, Yan-Hong;Fang, Qing-Kui;Liao, Min;Cao, Hai-Qun;Xiao, Jin-Jing;Shi, Yan-Hong;Fang, Qing-Kui;Liao, Min;Hua, Ri-Mao;Cao, Hai-Qun;Duan, Jin-Sheng;Wu, Yan-Can

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关键词： mushroom; pyrethroids; residue behavior; migration; processing factors

期刊名称：MOLECULES （ 影响因子：4.411； 五年影响因子：4.587 ）

ISSN： 1420-3049

年卷期： 2018 年 23 卷 4 期

页码：

收录情况： SCI

摘要： In order to ensure raw consumption safety the dissipation behavior, migration, postharvest processing, and dietary risk assessment of five pyrethroids in mushroom (Auricularia polytricha Mont.) cultivated under Chinese greenhouse-field conditions. Half-lives (t(1/2)) of pyrethroids in fruiting body and substrate samples were 3.10-5.26 and 17.46-40.06 d, respectively. Fenpropathrin dissipated rapidly in fruiting bodies (t(1/2) 3.10 d); bifenthrin had the longest t(1/2). At harvest, pyrethroid residues in A. polytricha (except fenpropathrin) were above the respective maximum residue limits (MRLs). Some migration of lambda-cyhalothrin was observed in the substrate-fruit body system. In postharvest-processing, sun-drying and soaking reduced pyrethroid residues by 25-83%. We therefore recommend that consumers soak these mushrooms in 0.5% NaHCO3 at 50 degrees C for 90 min. Pyrethroids exhibit a particularly low PF value of 0.08-0.13%, resulting in a negligible exposure risk upon mushroom consumption. This study provides guidance for the safe application of pyrethroids to edible fungi, and for the establishment of MRLs in mushrooms to reduce pesticide exposure in humans.

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