Plants tadiotionally used for infusion: Sample preparation techniques and determination of contaminants.

• Grant number: 17/05048-2
• Support type: Scholarships in Brazil - Doctorate
• Effective date (Start): May 01, 2018
• Effective date (End): April 05, 2020
• Field of knowledge: Agronomical Sciences - Food Science and Technology - Food Science
• Principal researcher: Helena Teixeira Godoy
• Grantee: Lucas Caldeirão Rodrigues Miranda
• Home Institution: Faculdade de Engenharia de Alimentos (FEA). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated scholarship(s): 18/25746-9 - Deep eutectic solvents in sample preparation method for determination of contaminants in ready-to-drink teas., BE.EP.DR

Abstract

Plants used for infusion preparation (teas) are expressively consumed in Brazil as aromatic beverage or in the treatment or reduction of several symptoms, however, this plants are several times purchased in stores where there is little or no information about their safety. Additionally, the National Health Surveillance Agency (Agência Nacional de Vigilância Sanitária, ANVISA), cares about regulation, commercialization, and consumption of this plants in order to ensure the safety of these products. In this context, this study aims to evaluate and/or develop and validate the methods for determination of pesticides and inorganic contaminations (heavy metals) in plants traditionally used in Brazil for infusions preparation and then evaluate the presence of contaminants. Twenty-six samples of plants will be purchased in "house of natural products" in municipal market of Campinas and metropolitan areas and submit them to determination of 27 pesticides from the classes of organochlorine, organophosphorus and pyrethroids by gas chromatography-mass spectrometry (GC-MS). Therefore, sample preparation techniques will be used to increase the analytical sensitivity and selectivity. Determination of inorganic contaminants will be performed by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). The analysis will be performed both in plants and in the infusions, in order to evaluate the migration of this compounds to the beverage. The infusions will be prepared according to The Phytotherapics Form of Brazilian Pharmacopeia

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. Web of Science Citations: 0.

MEINHART, ADRIANA DILLENBURG; CALDEIRAO, LUCAS; DAMIN, FERNANDA MATEUS; TEIXEIRA FILHO, JOSE; GODOY, HELENA TEIXEIRA. Analysis of chlorogenic acids isomers and caffeic acid in 89 herbal infusions (tea). Journal of Food Composition and Analysis, v. 73, p. 76-82, OCT 2018. Web of Science Citations: 2.