Behaviour of spirotetramat residues and its four metabolites in citrus marmalade during home processing
文献类型: 外文期刊
第一作者: Liu, Yanyu
作者: Liu, Yanyu;Chen, Weijun;Sun, Dali;Gong, Lei;Jiang, Liyan;Jiao, Bining;Liu, Yanyu;Chen, Weijun;Sun, Dali;Gong, Lei;Jiang, Liyan;Jiao, Bining;Su, Xuesu;Jian, Qiu;Chen, Weijun;Jiao, Bining;Jiao, Bining
作者机构:
关键词: Citrus;spirotetramat;metabolites;home processing;LC-MS
期刊名称:FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT ( 影响因子:3.057; 五年影响因子:2.96 )
ISSN:
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收录情况: SCI
摘要: The effect of home processing on the residues of spirotetramat and its four metabolites (B-enol, B-glu, B-mono and B-keto) in citrus marmalade is comprehensively investigated in this paper by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). A five-fold recommended dose of spirotetramat was applied to citrus fruit under field conditions and the processing included five steps: washing, peeling, pre-treatment for peel, mixing and boiling. The results showed that spirotetramat was the predominant component detected in unprocessed citrus, accounting for 64%. All the detected residues were primarily deposited on citrus peel, except for B-enol which was also present in the citrus pulp. Washing reduced spirotetramat, B-enol, B-glu and B-keto by 83%, 56%, 41% and 16%, respectively, and pre-treatment of the peel removed between 42% and 68% of the residues. Four compounds were all below the limit of detection after the mixing step. In the final product, only B-keto was detected at the concentration of 0.010mgkg(-1). After the whole process, the processing factors for spirotetramat, B-enol, B-glu and B-keto were <0.041, <0.125, <0.294 and 0.313, respectively, which indicated that home processing can significantly reduce residues of spirotetramat and its metabolites in citrus marmalade.
分类号: TS2
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