Residue behavior and processing factors of thirteen field-applied pesticides during the production of Chinese traditional fermented chopped pepper and chili powder

Kailong Li; Tongqiang Chen; Xiaobin Shi; Wuying Chen; Xiangwen Luo; Hao Xiong; Xinqiu Tan; Yong Liu; Deyong Zhang

doi:10.1016/j.fochx.2023.100854

Residue behavior and processing factors of thirteen field-applied pesticides during the production of Chinese traditional fermented chopped pepper and chili powder

Food Chem X. 2023 Sep 2:19:100854. doi: 10.1016/j.fochx.2023.100854. eCollection 2023 Oct 30.

Authors

Kailong Li¹, Tongqiang Chen², Xiaobin Shi¹, Wuying Chen¹, Xiangwen Luo¹, Hao Xiong¹, Xinqiu Tan¹, Yong Liu¹, Deyong Zhang¹

Affiliations

¹ Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha 410125, China.
² Hunan Provincial institute of product and goods quality inspection, Changsha 410007, China.

Abstract

In this study, the fate, processing factors and relationship with physicochemical properties of thirteen pesticides in field-collected pepper samples during Chinese chopped pepper and chili powder production was systematically studied. The washing, air-drying, chopping and salting and fermentation processes reduced 24.8%-62.8%, 0.9%-26.4%, 25.1%-50.3% and 16.3%-90.0% of thirteen pesticide residues, respectively, while the sun-drying processing increased the residues of eleven pesticides by 1.27-5.19 fold. The PFs of thirteen pesticides were < 1 in chopped pepper production and the PFs of eleven pesticides were more than 1 for chili powder production. The chopped pepper processing efficiency have most negative correlation with octanol-water partition coefficient. In contrast, the chili powder processing efficiency have most positive correlation with vapour pressure. Thus, this study can offer important references for assessment the pesticide residue levels in Chinese traditional fermented chopped pepper and chili powder production from fresh peppers.

Keywords: Chili powder; Chopped pepper; HPLC-MS/MS; Pesticides; Processing factors; Residue behavior.