Determination, residue analysis, risk assessment and processing factors of tebufenozide in okra fruits under field conditions

作者：Xiaoshuang Luo, Xinxian Qin, Dan Chen, Zhengyi Liu, Kankan Zhang, Deyu Hu · 发表于：Journal of the Science of Food and Agriculture · 年份：2019 · DOI：10.1002/jsfa.10134 · 被引用次数：20 · 研究领域：Pesticide Residue Analysis and Safety、Insect and Pesticide Research、Agricultural safety and regulations

BACKGROUND: Ensuring the yield, quality, and profitability of okra by preventing and controlling pests with the application of insecticides has increased in the last decade. Some insecticide residues might remain in edible parts of okra (fruits) and lead to several potential human health problems. Therefore, research on the residue behaviour, risk assessment and removal approach of insecticides on okra fruits is important for food safety, together with the proper application and residual elimination of insecticides in okra. RESULTS: A simple liquid chromatography with tandem mass spectrometry (LC-MS/MS) method was established and validated for determining the tebufenozide residues in okra fruits. The recoveries of tebufenozide in okra fruits were >72% with relative standard deviations of 0.6 to 6.1%. The dissipation rates of tebufenozide were different in okra fruits cultivated under open land and glasshouse field conditions because of the discriminating humidity and temperature conditions. The dietary intake of the tebufenozide residues from okra fruit consumption for Chinese consumers was fairly low, with approximately no potential health risk. The processing factor values of washing, blanching, washing + blanching and soaking were all less than one, which indicated that these processes could effectively reduce the residual hydrazide in the okra fruit. CONCLUSION: The developed method for analysing tebufenozide in okra fruits was applicable for field studies on this insecti...