Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, P. R. China.
College of Life Sciences, Shanghai Normal University, Shanghai, P. R. China.
Compr Rev Food Sci Food Saf. 2023 Jul;22(4):2945-2976. doi: 10.1111/1541-4337.13167. Epub 2023 May 11.
Due to its rich health benefits and unique cultural charm, tea drinking is increasingly popular with the public in modern society. The safety of tea is the top priority that affects the development of tea industry and the health of consumers. During the process of tea growth, pesticides are used to prevent the invasion of pests and diseases with maintaining high quality and stable yield. Because hot water brewing is the traditional way of tea consumption, water is the main carrier for pesticide residues in tea into human body accompanied by potential risks. In this review, pesticides used in tea gardens are divided into two categories according to their solubility, among which water-soluble pesticides pose a greater risk. We summarized the methods of the sample pretreatment and detection of pesticide residues and expounded the migration patterns and influencing factors of tea throughout the process of growth, processing, storage, and consumption. Moreover, the toxicity and safety of pesticide residues and diseases caused by human intake were analyzed. The risk assessment and traceability of pesticide residues in tea were carried out, and potential eco-friendly improvement strategies were proposed. The review is expected to provide a valuable reference for reducing risks of pesticide residues in tea and ensuring the safety of tea consumption.
由于其丰富的健康益处和独特的文化魅力，饮茶在现代社会越来越受到公众的欢迎。茶叶的安全性是影响茶叶产业发展和消费者健康的首要问题。在茶叶生长过程中，使用农药可以防止病虫害的侵袭，从而保持茶叶的高质量和稳定产量。由于热水冲泡是传统的饮茶方式，因此水是茶叶中农药残留进入人体的主要载体，存在潜在风险。在本综述中，根据农药的水溶性将茶园中使用的农药分为两类，其中水溶性农药的风险更大。我们总结了农药残留的样品前处理和检测方法，并阐述了茶叶在生长、加工、储存和消费过程中的迁移模式和影响因素。此外，还分析了农药残留的毒性和安全性以及人类摄入引起的疾病。对茶叶中农药残留的风险评估和溯源进行了研究，并提出了潜在的环保改进策略。本综述旨在为降低茶叶中农药残留的风险，确保茶叶消费的安全性提供有价值的参考。
