Profiling of pesticides and pesticide transformation products in Chinese herbal teas. (30th July 2022)

• Record Type: Journal Article
• Authors: Feng, Chao; Xu, Qian; Qiu, Xinlei; Jin, Yu'e; Ji, Jieyun; Lin, Yuanjie; Le, Sunyang; Xue, Liming; Chen, Yuhang; She, Jianwen; Xiao, Ping; Lu, Dasheng; Wang, Guoquan
• Is Part Of: Food chemistry. Volume 383(2022)
• Publication Date: 2022-07-30
• Subjects: Herbal tea -- Pesticide -- Pesticide transformation products -- Risk assessment -- Biosynthetic strategy; PTPs Pesticide transformation products -- MoA Mode of action -- HQ Hazard quotient -- ADI Acceptable daily intaked -- ARfD Acute reference dosed -- HI Hazard index -- EDI Estimated daily consumption -- mEDI Maximum estimated daily consumption -- VIP Variable influence on projection -- MRL Maximum residue limit -- LOQ Limit of quantification; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2022.132431
• Languages: English
• ISSNs: 0308-8146

Abstract

Highlights: A large number of pesticides were determined in two herbal teas. Eight pesticides transformation products were tentatively found. Variety and spatial differences of pesticide distribution were uncovered. Biosynthesis approach was used for confirming transformation products. Acute, chronic, and cumulative health risks of pesticides were estimated. Abstract: Herbal teas have potential health benefits, but they also contain a variety of pesticides and pesticide transformation products (PTPs) that might brings health risks. Our study maps the pesticides and PTPs in two herbal teas (chrysanthemum and Lusterleaf Holly) from two main producing areas in China. Almost all 122 samples contain pesticides, with concentration ranging from 0.0005 to 10.305 mg/kg. Nearly 40% carbendazim and imidacloprid in chrysanthemum teas and λ-cyhalothrin in Lusterleaf Holly have higher concentration levels than the values permitted in EC Regulation No. 396/2005. Distinct distributions of pesticides were found in different teas and production areas. Eight PTPs were identified along with their parents, and were confirmed using a biosynthetic strategy. Acute, chronic and cumulative health risk assessments of pesticides revealed acceptable results. Our study uncovers the profile of pesticides in herbal teas, and provides new insight into discovering the potential environmental pollution and food contaminants.