Optimization of extraction conditions of volatile compounds from pequi peel (Caryocar brasiliense Camb.) using HS-SPME

Authors

DOI:

https://doi.org/10.33448/rsd-v9i7.4893

Keywords:

Pequi pericarp; Agroindustrial residue; Headspace solid-phase microextraction; Volatile organic compounds.

Abstract

The pequi is a native specie from the Brazilian Cerrado that has great economic importance for the population of the region. The pericarp is considered an agroindustrial residue despite corresponding to approximately 80% of the total fruit mass. Informations about the chemical composition of pericarp would allow better utilization of this portion of the fruit. The objective of this study was to identify the best conditions of agitation, extraction time and extraction temperature to maximize the extraction of volatile organic compounds present in pequi pericarp (Caryocar brasiliense Camb.) using two types of solid phase microextraction fibers. The extraction of the volatile compounds was using the headspace solid-phase microextraction method with subsequent separation and identification by CG-MS. Polydimethylsiloxane/divinylbenzene (PDMS/DVB) fiber was statistically more efficient than divinylbenzene/carboxen/polydimethylsiloxane (DVB/CAR/PDMS) fiber. The both fibers enabled the extraction and identification of 35 compounds, mainly terpenes (65.71%) and esters (14.29%). An increase in the extraction temperature and time allowed greater extraction of volatile compounds by both fibers. However, in relation to agitation, the best condition for using DVB/CAR/PDMS was 100 rpm, while agitation was not necessary for an efficient extraction using the PDMS/DVB fiber.

Author Biography

Bárbara Oliveira Santos, Universidade Federal de Minas Gerais

Graduado em Farmácia pela Universidade Federal de Minas Gerais, doutorado em Ciências Química (Conceito 7 Capes) pela Universidade Federal de Minas Gerais. Docente no ensino superior desde 2000, trabalhando com as áreas de Fitoquímica, Química Farmacêutica , Farmacognosia e Química Orgânica. Professor e pesquisador Associado da Universidade Federal de São João del Rei. Coordenador dos Programas de Extensão desde 2014 nas áreas de Árvores do Cerrado; Água e Meio Ambiente e de Ensino de Química. Coordenador de Projetos de Pesquisa nas áreas de Estudo de compostos voláteis de frutos por CG/MS; Estudo da composição química de frutos por ESI/MS e Paper Spray/MS; Estudo metabolômico de plantas por DESI/MS; Estudo das alterações metabólicas em plantas de milho e soja na presença de ácaros fitófagos e lagartas, por CG/MS e ESI/MS; Estudo da qualidade das águas. Professor colaborador e orientador no Programa de Pós-Graduação em Ciência de Alimentos(UFMG).

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Published

16/06/2020

How to Cite

SANTOS, B. O.; AUGUSTI, R.; MELO, J. O. F.; TAKAHASHI, J. A.; ARAÚJO, R. L. B. de. Optimization of extraction conditions of volatile compounds from pequi peel (Caryocar brasiliense Camb.) using HS-SPME. Research, Society and Development, [S. l.], v. 9, n. 7, p. e919974893, 2020. DOI: 10.33448/rsd-v9i7.4893. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/4893. Acesso em: 27 apr. 2024.

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Section

Agrarian and Biological Sciences