Environmentally friendly technologies in the sample preparation of food

• Grant number: 18/24029-1
• Support Opportunities: Regular Research Grants
• Duration: March 01, 2019 - February 28, 2022
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Wanessa Melchert Mattos
• Grantee: Wanessa Melchert Mattos
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

With the growing concern for the environment and the need to destine waste generated in chemical processes, the concept of green chemistry has emerged, defined mainly by the development and application of alternative products and technology in processes to reduce or eliminate the use or generation of substances harmful to human health and the environment Based on this concept, technologies and alternative methods that meet the demand of sustainable chemistry have been widely explored. This is also valid for the sample preparation techniques, which are often required in steps prior to the chemical analysis, guaranteeing better execution of the same. The preparation of the sample is aimed at the selective isolation of the analytes and the elimination of most of the interferents in the sample matrix, in addition to concentrating the analytes when necessary, especially those present in low concentrations. The present project is focused on the development of clean and highly sensitive technologies for analysis of toxic analytes (pesticides and / or emerging pollutants) in food samples. For this purpose, different sample preparation based on liquid-liquid (LLE-LPT; DLLME-SFOD) and solid-liquid extraction (DPX; fluidized bed in a flow analysis system) will be evaluated. Waste generated will be degraded and toxicity will be assessed prior to disposal. (AU)

Scientific publications

(4)

(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)

MARTINS, FERNANDA C. O. L.; BATISTA, ALEX D.; MELCHERT, WANESSA R.. Current overview and perspectives in environmentally friendly microextractions of carbamates and dithiocarbamates. COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY, v. 20, n. 6, SEP 2021. (18/24029-1)

SOARES, SAMARA; CAMPOS, KAROLINE R. R.; MELCHERT, WANESSA R.; ROCHA, FABIO R. P.. A spot test for total esters determination in sugarcane spirits exploiting smartphone-based digital images. ANALYTICAL METHODS, v. 12, n. 31, p. 3918-3923, AUG 21 2020. (18/07687-5, 18/24029-1)

MAROUBO, LAIS A.; PEDRINA, GIOVANA; MELCHERT, WANESSA R.. Total sulfonamides determination in bovine milk using smartphone-based digital images. Microchemical Journal, v. 170, NOV 2021. (18/24029-1)

PIRES, JULIANA A.; GOMES, WINSTON P. C.; TEIXEIRA, NATALIA N.; MELCHERT, WANESSA R.. Effect of drying methods on nutritional constitutes of fermented grape residue. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE, DEC 2021. (18/24029-1)