Effect of household canning on the distribution and reduction of thiophanate-methyl and its metabolite carbendazim residues in tomato
文献类型: 外文期刊
第一作者: Dong, Fengshou
作者: Dong, Fengshou;Liu, Xingang;Xu, Jun;Li, Yuanbo;Han, Yongtao;Zhu, Yulong;Cheng, Youpu;Chen, Zenglong;Tao, Yan;Zheng, Yongquan;Liu, Na;Cheng, Youpu
作者机构:
关键词: Tomato;Thiophanate-methyl;Carbendazim;Processing
期刊名称:FOOD CONTROL ( 影响因子:5.548; 五年影响因子:5.498 )
ISSN: 0956-7135
年卷期: 2014 年 43 卷
页码:
收录情况: SCI
摘要: Tomato in the field was sprayed with thiophanate-methyl to quantify the effect of household processing on pesticide residues. Changes in the residue levels of thiophanate-methyl and its metabolite carbendazim in tomatoes were assessed during home-canning processing. Pesticide residues in tomato were determined by ultra-performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS/MS) after washing, peeling, homogenization, simmering, and sterilization. Results showed that washing with tap water reduced thiophanate-methyl residues by 25.0% and carbendazim residues by 13.0%. The peeling process yielded 84.2% loss in thiophanate-methyl and 87.3% loss in carbendazim from tomatoes. Peeling is thus the most effective step to remove pesticide residues from tomatoes. Homogenization, simmering, and sterilization exerted limited effects on the removal of thiophanatemethyl and carbendazim. The processing factors (PFs) of tomato samples after each step were generally less than 1; in particular, the PFs of the peeling process for thiophanate-methyl and carbendazim were 0.19 and 0.14, respectively. (C) 2014 Elsevier Ltd. All rights reserved.
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