The effects of applying cold atmospheric plasma on pesticide detection levels and tea leaves quality

• 全文链接

常压低温等离子体处理对农药残留检测水平及茶叶品质的影响

关键词：

来源：

Innovative Food Science & Emerging Technologies 期刊

全文链接：

//agri.nais.net.cn/topic/downloadFile/7ee2e5c4-bb37-496f-ae36-9121907b386c

来源地址：

https://www.sciencedirect.com/science/article/pii/S1466856425001444

资源所属：

茶学研究专题

类型：

学术文献

语种：

英语

原文发布日期：

2025-05-23

摘要：

Pesticide residues in tea leaves are a significant concern for both the tea industry and consumers. Improper pesticide application, failure to adhere to pre-harvest intervals, and environmental contamination contribute to their presence. Additionally, inconsistent international maximum residue limits (MRLs) complicate global tea trade. This study investigates the application of cold atmospheric plasma (CAP), a novel nonthermal technology, for pesticide degradation in tea leaves. Imidacloprid and Pyraclostrobin, commonly detected pesticides, were selected as target compounds. CAP treatment effectively reduced these pesticides by 44 % and 43 %, respectively, achieving compliance with Taiwanese and EU regulatory standards. Furthermore, CAP enhanced the visual appeal of the tea leaves by improving brightness and greenness, while maintaining antioxidant capacity comparable to commercial green tea. Key aromatic compounds, α-terpinene, geraniol, and linalool, were also preserved. Optimal CAP parameters (19 kHz, 400 W, and 5.41 min) were identified for effective pesticide reduction without compromising tea quality. These findings provide promising directions for future research and potential industrial applications, contributing to safer and more sustainable tea production.