Degradation, migration, and removal of trichlorfon on harvested apples during storage at room temperature

Changjian Li; Kexin Chi; Hang Yu; Yahui Guo; Weirong Ya; He Qian

doi:10.1016/j.foodchem.2022.132243

Degradation, migration, and removal of trichlorfon on harvested apples during storage at room temperature

Food Chem. 2022 Jul 1:381:132243. doi: 10.1016/j.foodchem.2022.132243. Epub 2022 Jan 29.

Authors

Changjian Li¹, Kexin Chi¹, Hang Yu¹, Yahui Guo¹, Weirong Ya², He Qian³

Affiliations

¹ State Key Laboratory of Food Science and Technology, Jiangnan University, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, China.
² State Key Laboratory of Food Science and Technology, Jiangnan University, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, China. Electronic address: yaoweirongcn@jiangnan.edu.cn.
³ State Key Laboratory of Food Science and Technology, Jiangnan University, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, China. Electronic address: amtf168168@126.com.

PMID: 35121312
DOI: 10.1016/j.foodchem.2022.132243

Abstract

Dissipation of an organophosphorus pesticide, trichlorfon, in natural and waxed apples during storage was studied. The results showed that the trichlorfon content in natural and waxed apples decreased by 85% and 64%, respectively, during storage. The morphology of the surface film was dense and regular, which resulted in a higher water vapor resistance and a lower respiration rate in the waxed apples. This indicates that waxing affected the dissipation of pesticide residues in the apple storage environment, increasing food safety risk. Ozone was used to remove the residual pesticides on the apple surface. The trichlorfon degradation rate reached 73%. The ozone treatment had no effect on the surface color of the apple, which means that the fruit can be pre-treated with ozone prior to waxing or storage.

Keywords: Apple; Dissipation; Ozone; Pesticide residues; Storage.

MeSH terms

Fruit / chemistry
Malus* / chemistry
Organophosphorus Compounds / analysis
Pesticide Residues* / analysis
Pesticides* / analysis
Temperature
Trichlorfon / analysis

Substances

Organophosphorus Compounds
Pesticide Residues
Pesticides
Trichlorfon