Determination of pesticide residues in food using LC-MS/MS and GC/MS

• Grant number: 10/18316-6
• Support type: Regular Research Grants
• Duration: February 01, 2011 - January 31, 2013
• Field of knowledge: Agronomical Sciences - Food Science and Technology
• Principal researcher: Valdemar Luiz Tornisielo
• Grantee: Valdemar Luiz Tornisielo
• Home Institution: Centro de Energia Nuclear na Agricultura (CENA). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Assoc. researchers: Aderbal Almeida Rocha ; Franz Zirena Vilca ; Graziela Cristina Rossi Moura Andrade

Abstract

The pesticides uses are beneficial to society by increasing´s food availability, but negative aspects such as soil contamination, water and food are associated with the misuse. The strawberry crops is expanding in many regions of the country due to the crop adaptation, climate and the fruit characteristics. The quinoa is a halotipic specie, originary from the Andes, with potential production in many regions of the world due to the nutritional composition of their seeds. The tomato is a widely consumed vegetable, and beyond their basic nutritional qualities, is considered a functional food that brings health benefits. The intensive use of pesticides in strawberry and tomato crops disrespecting the Good Agricultural Practices has caused concerns about possible contamination of the final product and many multiresidue methods have been employed to evaluate and determine the levels of residues in food samples. In the case of quinoa, due to small knowledge of this cereal, there are no published scientific data regarding the pesticide residues. Therefore, the objective is the quantification of residues of different chemical classes in strawberry, tomato and quinoa, using the method of sample preparation QuEChERS, and the determination of residue levels in commercial samples of strawberry, tomato, and 25 varieties of quinoa from Peru. The detection will be performed using GC-MS and LC-MS/MS. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

ANDRADE, GRAZIELA C. R. M.; MONTEIRO, SERGIO H.; FRANCISCO, JEANE G.; FIGUEIREDO, LEILA A.; ROCHA, ADERBAL A.; TORNISIELO, VALDEMAR L. Effects of Types of Washing and Peeling in Relation to Pesticide Residues in Tomatoes. Journal of the Brazilian Chemical Society, v. 26, n. 10, p. 1994-2002, OCT 2015. Web of Science Citations: 4.

ANDRADE, G. C. R. M.; MONTEIRO, S. H.; FRANCISCO, J. G.; FIGUEIREDO, L. A.; BOTELHO, R. G.; TORNISIELO, V. L. Liquid chromatography-electrospray ionization tandem mass spectrometry and dynamic multiple reaction monitoring method for determining multiple pesticide residues in tomato. Food Chemistry, v. 175, p. 57-65, MAY 15 2015. Web of Science Citations: 29.