Transfer assessment of carbendazim residues from rapeseed to oil production determined by HPLC–MS/MS

Abstract

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.

Keywords:

• Household oil processing
• pesticide
• processing factor
• redistribution

Disclosure statement

The authors declare that there is no conflict of interests regarding the publication of this paper.

Availability of data and materials

The data that support the findings of this study are available from the corresponding author, Hu Zhang upon reasonable request.

Additional information

Funding

This work was supported by grants from the National Natural Science Foundation of China (No. 31801642) & Public Welfare Technology Application Research Project of Zhejiang Province (No. LGN18C140002).