Residue behavior and quality influence of tolfenpyrad and cyromazine in cowpea during simulated household washing process
文献类型： 外文期刊
作者： Jiang, Shufan 1 ; Li, Haoyue 1 ; Zhu, Xuan 1 ; Li, Shuhuai 1 ; Wang, Mingyue 1 ; Xie, Defang 1 ; Li, Bei 4 ; Wu, Qiong 1 ; Zhang, Xinzhong 2 ; Han, Bingjun 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Key Lab Qual & Safety Control Subtrop Fruit & Vege, Hainan Prov Key Lab Qual & Safety Trop Fruits & Ve, Anal & Test Ctr,Minist Agr & Rural Affairs,Key Lab, Haikou 571101, Hainan, Peoples R China
2.Chinese Acad Agr Sci, Tea Res Inst, Hangzhou 310008, Peoples R China
3.Tianjin Agr Univ, Coll Hort & Landscape, Tianjin 300392, Peoples R China
4.Hainan Acad Inspect & Testing, Inst Food Testing, Key Lab Trop Fruits & Vegetables Qual & Safety Sta, Haikou 570311, Hainan, Peoples R China
关键词： Cowpea; Household washing process; Quality influence; Tolfenpyrad; Cyromazine; In situ mass spectrometry imaging
期刊名称：FOOD CONTROL （ 影响因子：5.6； 五年影响因子：5.4 ）
ISSN： 0956-7135
年卷期： 2024 年 165 卷
页码：
收录情况： SCI
摘要： Cowpea, a typical vegetable characterized by a consistent growth and harvest period, often accumulates high pesticide residues in pods. The household washing process has the potential to impact both pesticide residue and the quality of cowpea pods. This study investigated the behavior of tolfenpyrad and cyromazine in cowpea pods using in situ mass spectrometry imaging, analyze changes in nutrients, and explore typical metabolite alterations following the washing process. Both tolfenpyrad and cyromazine levels on the surface of the cowpea were significantly reduced after the washing process, although cyromazine distributed inside the cowpea remained at a high level. Immersing cowpeas in 2% NaHCO 3 for 30 min and a 3 min tap-water rinse resulted in the removal of 72% and 58% of tolfenpyrad, 66% and 50% of cyromazine, respectively. Importantly, a 3 min tap-water rinse did not impact nutrient content, while other 30 min immersions led to a reduction in typical nutritional factors. Furthermore, the levels of typical metabolites such as tamarix, quercetin, and aspartic acid were down-regulated, while malic acid, glucose, and ascorbic acid were up-regulated in cowpea after pesticide immersion. The concentrations of all six metabolites in cowpea decreased after the washing procedure.
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