Autor(es): Carreiró, Filipa ; Barros, Sílvia Cruz ; Brites, Carla ; Cazón, Patricia ; Torres, Duarte ; Ramos, Fernando ; Silva, Ana Sanches
Data: 2025
Identificador Persistente: http://hdl.handle.net/10362/188917
Origem: Repositório Institucional da UNL
Assunto(s): Food processing; Pesticide residues; QuEChERS; Rice; Washing effect; Analytical Chemistry; Food Science; SDG 3 - Good Health and Well-being
Funding Information: This research was supported by the TRACE-RICE project\u2014Tracing rice and valorizing side streams along Mediterranean blockchain, grant No. 1934, under the PRIMA Programme, funded by Horizon 2020, the European Union's Framework Programme for Research and Innovation. Additional funding was provided by national funds from Portugal (FCT/MCTES, Funda\u00E7\u00E3o para a Ci\u00EAncia e Tecnologia, and Minist\u00E9rio da Ci\u00EAncia, Tecnologia e Ensino Superior) through grant UIDB/00211/2020. F. Carreir\u00F3 also acknowledges the fellowship received as part of the TRACE-RICE project. Publisher Copyright: © 2025 The Authors
Pesticides are vital for protecting crops from diseases but pose risks to human health and the environment, requiring careful evaluation. This study examines pesticide residues in rice and strategies for their removal. Brown, long-milled, and basmati-milled rice samples were spiked with 121 pesticides from different categories (e.g., carbamates, organophosphates, neonicotinoids, triazolobenzothiazoles) at 20 and 50 μg/mL to evaluate residue levels. Pesticides were extracted using the QuEChERS (quick, easy, cheap, effective, rugged, and safe) method and analyzed via High Performance Liquid Chromatography coupled with mass spectrometry. Residue removal was tested using washing methods with and without vinegar. Results showed that long-grain milled rice had higher pesticide residues, and adding vinegar significantly enhanced their removal. These findings contribute to improving food safety practices by providing insights into effective pesticide residue mitigation in rice.
