It is crucial to develop practical procedures for the control and reduction of pesticide residues in oil productions from farm to dining table. In this study, the dissipation behaviors of typical fungicide from rapeseed to oil production were studied to reveal relationship among spraying stage, application dosage, household oil processing stage, and pesticide residues. In the field trials, rape plants were sprayed with carbendazim at three different dosages during flowering period. Transfer assessment of carbendazim residues from rapeseed to oil production during household oil processing via different press techniques was determined using high-performance liquid chromatography coupled with tandem mass spectrometry (HPLC–MS/MS). The recoveries of carbendazim in rapeseed samples, meals after squeezing samples, and rapeseed oil samples ranged from 82.5% to 93.6% with relative standard deviations (RSDs) ＜5.2%. The validation results illustrated that the methods were reliable and sensitive. The average processing factor (PF) during household oil processing via hot press technique and cold press technique was 0.15 and 0.51, respectively. This study demonstrated that household oil processing could significantly reduce the pesticide residues, especially by hot press technique.

开发控制和减少从农场到餐桌的石油生产中农药残留的实用程序至关重要。本研究研究了典型杀菌剂从油菜籽到产油的耗散行为，揭示了喷洒阶段，施药量，家用油脂加工阶段和农药残留之间的关系。在田间试验中，在开花期以三种不同剂量将多菌灵喷施于油菜植物上。使用高效液相色谱-串联质谱（HPLC-MS / MS），通过不同的压榨技术确定了家用榨油过程中多菌灵残留物从菜籽到石油生产的转移评估。油菜籽样品，榨汁后的粗粉和菜籽油样品中多菌灵的回收率为82。相对标准偏差（RSD）＜5.2％的5％至93.6％。验证结果表明，该方法可靠，灵敏。通过热压技术和冷压技术进行的家用油脂加工过程中的平均加工因子（PF）分别为0.15和0.51。这项研究表明，家用油脂加工可以显着减少农药残留，特别是通过热压技术。