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采用 LC-MS/MS 和 GC-MS/MS 分析百香果及其加工产品中的农药残留:方法验证、加工因子和膳食风险评估。

Pesticide residues analysis in passion fruit and its processed products by LC-MS/MS and GC-MS/MS: Method validation, processing factors and dietary risk assessment.

机构信息

Laboratory of Toxicology, Department of Pharmacy, University of Brasília, Brasília, Federal District 70910-900, Brazil.

Laboratory of Toxicology, Department of Pharmacy, University of Brasília, Brasília, Federal District 70910-900, Brazil.

出版信息

Food Chem. 2022 May 1;375:131643. doi: 10.1016/j.foodchem.2021.131643. Epub 2021 Nov 19.

Abstract

A method for the determination of 80 pesticides (including five metabolites) in passion fruit using ethyl acetate extraction and dispersive solid-phase extraction followed by LC-MS/MS and GC-MS/MS was validated at LOQ of 0.005 or 0.010 mg kg (70 to 120% recovery; RSD ≤ 20%). Fifty-five passion fruit samples were obtained from producers, and 30 samples of frozen pulp and 12 samples of flour purchased. About 27% of the pesticides were detected; at least one in 60% of the peel samples, mainly imidacloprid and carbendazim (max. of 0.274 mg kg). Median processing factor was 0.5 for washed peel and 6.5 for dried peel (flour). About 63% of frozen pulp samples were positive, and 4 flour samples contained residues, mainly methamidophos. About 70% of the detected pesticides are not authorized in passion fruit in Brazil. Chronic and acute exposure from the consumption of passion fruit products did not indicate a health concern.

摘要

采用乙酸乙酯提取和分散固相萃取,结合 LC-MS/MS 和 GC-MS/MS 方法,对百香果中的 80 种农药(包括 5 种代谢物)进行了检测,检测限为 0.005 或 0.010 mg kg(回收率为 70%至 120%;RSD≤20%)。从生产商处获得了 55 个百香果样本,以及 30 个冷冻果肉样本和 12 个果粉样本。约 27%的样本检测出农药残留,果皮样本中至少有 60%检出农药,主要为吡虫啉和多菌灵(最高含量为 0.274 mg kg)。经清洗的果皮和经干燥的果皮(果粉)的加工系数中位数分别为 0.5 和 6.5。约 63%的冷冻果肉样本呈阳性,4 个果粉样本含有残留农药,主要为甲胺磷。在巴西,约 70%的检出农药未获批准用于百香果。食用百香果产品导致的慢性和急性暴露不会对健康造成影响。

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