Deep eutectic solvents in sample preparation method for determination of contaminants in ready-to-drink teas.

• Grant number: 18/25746-9
• Support type: Scholarships abroad - Research Internship - Doctorate
• Effective date (Start): March 01, 2019
• Effective date (End): September 05, 2019
• Field of knowledge: Agronomical Sciences - Food Science and Technology - Food Science
• Principal researcher: Helena Teixeira Godoy
• Grantee: Lucas Caldeirão Rodrigues Miranda
• Supervisor abroad: Sara Cristina da Silva Cunha
• Home Institution: Faculdade de Engenharia de Alimentos (FEA). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Research place: Universidade do Porto (UP), Portugal
• Associated to the scholarship: 17/05048-2 - Plants tadiotionally used for infusion: Sample preparation techniques and determination of contaminants., BP.DR

Abstract

In Brazil, can be observed an increased production and consumption of ready-to-drink teas, especially those based on toasted yerba mate (Ilex paraguariensis) or black tea (Camellia sinensis). It is known that these herbs may contain polycyclic aromatics hydrocarbons (PAH) coming from environmental contamination or processing steps, as well as phthalates, additives used in some plastic packages that can migrate to food and beverage, mostly when it is hot-packed. Considering this, this project aims to the develop a "green" sample preparation technic, looking for a sensitive and selective method for determination of PAHs and phthalates in ready-to-drink teas commercialized in Brazil. For this, it is proposed an extraction process employing deep eutectic solvent (DES) followed by gas chromatography coupled with tandem mass spectrometry (GC-MS/MS) analysis. With the results, it is expected to know the presence and concentration of PAHs and phthalates as well as carry out the exposure assessment and risk characterization for these contaminants in ready-to-drink teas.

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)

CALDEIRAO, LUCAS; FERNANDES, JOSE O.; GONZALEZ, MARIO HENRIQUE; GODOY, HELENA TEIXEIRA; CUNHA, SARA C.. A novel dispersive liquid-liquid microextraction using a low density deep eutectic solvent-gas chromatography tandem mass spectrometry for the determination of polycyclic aromatic hydrocarbons in soft drinks. Journal of Chromatography A, v. 1635, JAN 4 2021. (17/05048-2, 18/25746-9, 19/22113-8, 17/18531-3)

CALDEIRAO, LUCAS; FERNANDES, JOSE O.; DA SILVA OLIVEIRA, WELLINGTON; GODOY, HELENA TEIXEIRA; CUNHA, SARA C.. Phthalic acid esters and adipates in herbal-based soft drinks: an eco-friendly method. ANALYTICAL AND BIOANALYTICAL CHEMISTRY, v. 413, n. 11, SI, p. 2903-2912, MAY 2021. (18/25746-9, 17/05048-2)