Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China; Functional and Evolutionary Entomology, Gembloux Agro-Bio-Tech, University of Liège, Passage des Déportés 2, 5030 Gembloux, Belgium.
Food Chem. 2020 Aug 15;321:126687. doi: 10.1016/j.foodchem.2020.126687. Epub 2020 Mar 24.
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) 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.
食品加工对苹果产品中手性农药残留水平和命运的影响鲜有研究。本研究采用超高效合相色谱-三重四极杆质谱联用技术测定新型手性杀螨剂氟吡菌酰胺的含量。建立了苹果片、果汁、葡萄酒和醋中氟吡菌酰胺的基质匹配校准曲线，其决定系数(r)均大于 0.9954。平均回收率在 81.1%至 119.9%之间，相对标准偏差(RSD)在 0.8%至 11.0%之间。以加工因子(PF)表示加工效果。结果表明，不同加工工序(清洗、去皮、酶解、发酵等)的 PF 一般小于 1。发酵过程中氟吡菌酰胺对映体的减少符合一级动力学，且观察到手性选择性行为。本研究为评估苹果产品加工过程中氟吡菌酰胺的风险提供了可靠的参考。
