Profiling of pesticides and pesticide transformation products in Chinese herbal teas.

Chao Feng, Qian Xu, Xinlei Qiu, Yu'e Jin, Jieyun Ji, Yuanjie Lin, Sunyang Le, Liming Xue, Yuhang Chen, Jianwen She, Ping Xiao, Dasheng Lu, Guoquan Wang

Food chemistry 2022 Jul 30

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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. Copyright © 2022 Elsevier Ltd. All rights reserved.

Citation

Chao Feng, Qian Xu, Xinlei Qiu, Yu'e Jin, Jieyun Ji, Yuanjie Lin, Sunyang Le, Liming Xue, Yuhang Chen, Jianwen She, Ping Xiao, Dasheng Lu, Guoquan Wang. Profiling of pesticides and pesticide transformation products in Chinese herbal teas. Food chemistry. 2022 Jul 30;383:132431