Development of disposable sensors based on 3D graphene oxide, metal nanoparticles and molecularly imprinted polymers for the determination of phenolic acids in fruticulture waste

• Grant number: 19/13818-8
• Support type: Scholarships in Brazil - Doctorate
• Effective date (Start): January 01, 2020
• Status: Discontinued
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal researcher: Nelson Ramos Stradiotto
• Grantee: Edervaldo Buffon
• Home Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
• Associated research grant: 17/22401-8 - Fruit-refinery: obtention processes, characterization methods and generation of products derived from residues of the fruitculture, AP.TEM
• Associated scholarship(s): 20/16521-3 - Determination of phenolic compounds analogous to cinnamic acid in orange waste using an array of biosensors based on molecularly imprinted polymers and bioelectronic tongue concepts, BE.EP.DR

Abstract

The production and processing of fruits are important activities for the Brazilian economy. However, the processing of fruit generates a large amount of waste, which when discarded in inappropriate places, causes a major environmental problem. Orange and banana are the most produced and consumed fruits in the Brazilian territory, and the residues generated by the processing of these fruits are composed mainly of peels; which, in turn, are rich in phenolic acids. Among the phenolic acids found in banana and orange peels; ferulic, vanillic and p-coumaric acids can be highlighted, since they are used by the food, pharmaceutical and cosmetic industries to obtain a wide variety of products. In view of the reuse of banana and orange peels, the phenolic acids found in these residues can be extracted and used to obtain higher-added value products, which gives these substances a more profitable and environmentally friendly destination. In this context, the characterization of banana and orange peels for later reuse is of fundamental importance; thus, the objective of this research project is the development of disposable electrochemical sensors based on 3D graphene oxide, metal nanoparticles and molecularly imprinted polymers for the determination of ferulic, vanillic and p-coumaric acids in these fruticulture waste. (AU)

Scientific publications

(6)

(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)

FALONE, MAX FABRICIO; BUFFON, EDERVALDO; STRADIOTTO, NELSON RAMOS. Molecularly imprinted electrochemical sensor for monitoring mercaptan sulfur in aviation biofuel. FUEL, v. 307, JAN 1 2022. Web of Science Citations: 0.

PRIMO, CAROLINA MARTINS; BUFFON, EDERVALDO; STRADIOTTO, NELSON RAMOS. A carbon nanotubes-pectin composite for electrochemical determination of copper in aviation biokerosene by anodic stripping voltammetry. FUEL, v. 302, OCT 15 2021. Web of Science Citations: 0.

POMPEU PRADO MOREIRA, LUIZ FELIPE; BUFFON, EDERVALDO; DE SA, ACELINO CARDOSO; STRADIOTTO, NELSON RAMOS. Fructose determination in fruit juices using an electrosynthesized molecularly imprinted polymer on reduced graphene oxide modified electrode. Food Chemistry, v. 352, AUG 1 2021. Web of Science Citations: 0.

BUFFON, EDERVALDO; STRADIOTTO, NELSON RAMOS. A molecularly imprinted polymer on reduced graphene oxide-gold nanoparticles modified screen-printed electrode for selective determination of ferulic acid in orange peels. Microchemical Journal, v. 167, AUG 2021. Web of Science Citations: 0.

DA SILVA, JOSE LUIZ; BUFFON, EDERVALDO; BELUOMINI, MAISA AZEVEDO; PRADELA-FILHO, LAURO ANTONIO; GOUVEIA ARAUJO, DIELE APARECIDA; SANTOS, ANDRE LUIZ; TAKEUCHI, RGINA MASSAKO; STRADIOTTO, NELSON RAMOS. Non-enzymatic lactose molecularly imprinted sensor based on disposable graphite paper electrode. Analytica Chimica Acta, v. 1143, p. 53-64, JAN 25 2021. Web of Science Citations: 3.

FALONE, MAX FABRICIO; BUFFON, EDERVALDO; STRADIOTTO, NELSON RAMOS. Voltammetric study of a sulfur contaminant of aviation biokerosene. Journal of Solid State Electrochemistry, v. 24, n. 8, SI MAY 2020. Web of Science Citations: 0.