Residues and enantioselective behavior of cyflumetofen from apple production
Residues and enantioselective behavior of cyflumetofen from apple production
复制标题
苹果生产中氟虫芬的残留和对映选择性行为
DOI：
10.1016/j.foodchem.2020.126687
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发表时间：
2020-08-15
期刊：
影响因子：
8.8
通讯作者：
Fan, Bei
中科院分区：
文献类型：
--
作者：
Quan, Rui;Li, Minmin;Fan, Bei
食品加工对苹果产品中手性农药残留水平和归宿的影响很少被研究。本研究采用超高效会聚色谱-三重四极杆质谱联用技术对新型手性杀螨剂丁氟螨酯的含量进行了测定。建立了苹果片、果汁、葡萄酒和醋的基质匹配校正线，决定系数（r（2））均大于0.9954。可接受的平均回收率为81.1%至119.9%，相对标准偏差（RSD）为0.8%至11.0%。处理效率由处理因子（PF）表示。结果表明，不同工序（清洗、去皮、腌制、发酵等）的发酵液中，一般小于1。发酵过程中氯氟螨酯对映体的还原符合一级动力学，并具有立体选择性。该研究为氯氟螨酯在苹果加工过程中的风险评价提供了可靠的参考依据。
The effect of food processing on the level and fate of chiral pesticide residues in apple products has rarely been investigated. In this study, we used ultra-performance convergence chromatography coupled with triple quadrupole mass spectrometry to determine the content of the novel chiral acaricide cyflumetofen. The matrix-matched calibration lines were constructed for apple slices, juice, wine and vinegar, and the determination coefficients (r(2)) exceeded 0.9954. Acceptable average recoveries were within 81.1% to 119.9%, and the relative standard deviations (RSDs) ranged from 0.8% to 11.0%. Processing effectiveness is represented by the processing factor (PF). The results indicated that the PFs of different procedures (washing, peeling, enzymolysis, fermentation, among others.) were generally less than 1. The reduction of cyflumetofen enantiomers during fermentation was in accordance with first-order kinetics, and stereoselective behavior was observed. This study provides reliable references for the risk assessment of cyflumetofen in the processing of apple products.