Nectandra grandiflora By-Products Obtained by Alternative Extraction Methods as a Source of Phytochemicals with Antioxidant and Antifungal Properties
dc.contributor.author | Da Silva, Daniela Thomas | |
dc.contributor.author | Herrera Díaz, René | |
dc.contributor.author | Heinzmann, Berta Maria | |
dc.contributor.author | Calvo, Javier | |
dc.contributor.author | Labidi Bouchrika, Jalel | |
dc.date.accessioned | 2019-01-09T19:06:32Z | |
dc.date.available | 2019-01-09T19:06:32Z | |
dc.date.issued | 2018-02-09 | |
dc.identifier.citation | Molecules 23(2) : (2018) // Article ID 372 | es_ES |
dc.identifier.issn | 1420-3049 | |
dc.identifier.uri | http://hdl.handle.net/10810/30713 | |
dc.description.abstract | Nectandra grandiflora Nees (Lauraceae) is a Brazilian native tree recognized by its durable wood and the antioxidant compounds of its leaves. Taking into account that the forest industry offers the opportunity to recover active compounds from its residues and by-products, this study identifies and underlines the potential of natural products from Nectandra grandiflora that can add value to the forest exploitation. This study shows the effect of three different extraction methods: conventional (CE), ultrasound-assisted (UAE) and microwave-assisted (MAE) on Nectandra grandiflora leaf extracts (NGLE) chemical yields, phenolic and flavonoid composition, physical characteristics as well as antioxidant and antifungal properties. Results indicate that CE achieves the highest extraction phytochemical yield (22.16%), but with similar chemical composition to that obtained by UAE and MAE. Moreover, CE also provided a superior thermal stability of NGLE. The phenolic composition of NGLE was confirmed firstly, by colorimetric assays and infrared spectra and then by chromatographic analysis, in which quercetin-3-O-rhamnoside was detected as the major compound (57.75–65.14%). Furthermore, the antioxidant capacity of the NGLE was not altered by the extraction methods, finding a high radical inhibition in all NGLE (>80% at 2 mg/mL). Regarding the antifungal activity, there was observed that NGLE possess effective bioactive compounds, which inhibit the Aspergillus niger growth. | es_ES |
dc.description.sponsorship | This research was financially supported by the Department of Education of Basque Government (IT1008-16) and by Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq process 454447/2014-0). Authors would like to thanks the CNPq for research grants received by Berta Maria Heinzmann, Ph.D. scholarship (process 203796/2014-4) granted to Daniela Thomas da Silva and the Basque Government for scholarship of young researchers training granted to Rene Herrera. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | forest residues | es_ES |
dc.subject | phenolic compounds | es_ES |
dc.subject | natural antioxidants | es_ES |
dc.subject | quercitrin | es_ES |
dc.subject | value-added by-products | es_ES |
dc.title | Nectandra grandiflora By-Products Obtained by Alternative Extraction Methods as a Source of Phytochemicals with Antioxidant and Antifungal Properties | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://www.mdpi.com/1420-3049/23/2/372 | es_ES |
dc.identifier.doi | 10.3390/molecules23020372 | |
dc.departamentoes | Ingeniería química y del medio ambiente | es_ES |
dc.departamentoeu | Ingeniaritza kimikoa eta ingurumenaren ingeniaritza | es_ES |
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Except where otherwise noted, this item's license is described as © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).