Biochemical features of organic extractives from Eucalyptus and Corymbia woods using ethanol as a solvent

Abstract: This study aims to evaluate chemical characteristics, antioxidant and antibacterial activities of organic compounds extracted from three Eucalyptus wood and Corymbia maculate wood using ethanol as a solvent. To obtain the ethanolic extracts, 15 g of a powdered wood sample was mixed with 15...

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Autores principales:	Barbosa,Kelvin Techera, Acosta,Andrey Pereira, Schulz,Henrique Romer, Santi,Ivandra Ignes de, Delucis,Rafael de Avila, Beltrame,Rafael, Gatto,Darci Alberto
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2021
Materias:	Chemical characteristics condensed tannins natural extractives ethanol extraction infrared.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100458
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spelling	oai:scielo:S0718-221X20210001004582021-09-01Biochemical features of organic extractives from Eucalyptus and Corymbia woods using ethanol as a solventBarbosa,Kelvin TecheraAcosta,Andrey PereiraSchulz,Henrique RomerSanti,Ivandra Ignes deDelucis,Rafael de AvilaBeltrame,RafaelGatto,Darci Alberto Chemical characteristics condensed tannins natural extractives ethanol extraction infrared. Abstract: This study aims to evaluate chemical characteristics, antioxidant and antibacterial activities of organic compounds extracted from three Eucalyptus wood and Corymbia maculate wood using ethanol as a solvent. To obtain the ethanolic extracts, 15 g of a powdered wood sample was mixed with 150 mL of ethyl alcohol 99 % PA by constant mechanical stirring, which was further magnetically mixed at 60 ºC for 24 h. The extractives were analyzed utilizing percent yield, Fourier-transform infrared spectrum, inhibitory index (measured after antimicrobial tests), antioxidant activity, and condensed tannins content. The Eucalyptus dunnii extract showed the highest percent yield. The infrared spectra of all the extractives presented similar profiles, with remarkable bands ascribed to the presence of lipophilic extracts, sterols, fatty acids, and other hydroxylated substances, such as carbohydrates and phenolic compounds. In all cases, the higher the concentration of the extractive was, the higher the antioxidant activity was. The antioxidant activity of Eucalyptus saligna extract stood out since overcame that of the positive control (ascorbic acid). Regarding the condensed tannins content, that extract from Eucalyptus grandis excelled.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.23 20212021-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100458en10.4067/s0718-221x2021000100458
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Chemical characteristics condensed tannins natural extractives ethanol extraction infrared.
spellingShingle	Chemical characteristics condensed tannins natural extractives ethanol extraction infrared. Barbosa,Kelvin Techera Acosta,Andrey Pereira Schulz,Henrique Romer Santi,Ivandra Ignes de Delucis,Rafael de Avila Beltrame,Rafael Gatto,Darci Alberto Biochemical features of organic extractives from Eucalyptus and Corymbia woods using ethanol as a solvent
description	Abstract: This study aims to evaluate chemical characteristics, antioxidant and antibacterial activities of organic compounds extracted from three Eucalyptus wood and Corymbia maculate wood using ethanol as a solvent. To obtain the ethanolic extracts, 15 g of a powdered wood sample was mixed with 150 mL of ethyl alcohol 99 % PA by constant mechanical stirring, which was further magnetically mixed at 60 ºC for 24 h. The extractives were analyzed utilizing percent yield, Fourier-transform infrared spectrum, inhibitory index (measured after antimicrobial tests), antioxidant activity, and condensed tannins content. The Eucalyptus dunnii extract showed the highest percent yield. The infrared spectra of all the extractives presented similar profiles, with remarkable bands ascribed to the presence of lipophilic extracts, sterols, fatty acids, and other hydroxylated substances, such as carbohydrates and phenolic compounds. In all cases, the higher the concentration of the extractive was, the higher the antioxidant activity was. The antioxidant activity of Eucalyptus saligna extract stood out since overcame that of the positive control (ascorbic acid). Regarding the condensed tannins content, that extract from Eucalyptus grandis excelled.
author	Barbosa,Kelvin Techera Acosta,Andrey Pereira Schulz,Henrique Romer Santi,Ivandra Ignes de Delucis,Rafael de Avila Beltrame,Rafael Gatto,Darci Alberto
author_facet	Barbosa,Kelvin Techera Acosta,Andrey Pereira Schulz,Henrique Romer Santi,Ivandra Ignes de Delucis,Rafael de Avila Beltrame,Rafael Gatto,Darci Alberto
author_sort	Barbosa,Kelvin Techera
title	Biochemical features of organic extractives from Eucalyptus and Corymbia woods using ethanol as a solvent
title_short	Biochemical features of organic extractives from Eucalyptus and Corymbia woods using ethanol as a solvent
title_full	Biochemical features of organic extractives from Eucalyptus and Corymbia woods using ethanol as a solvent
title_fullStr	Biochemical features of organic extractives from Eucalyptus and Corymbia woods using ethanol as a solvent
title_full_unstemmed	Biochemical features of organic extractives from Eucalyptus and Corymbia woods using ethanol as a solvent
title_sort	biochemical features of organic extractives from eucalyptus and corymbia woods using ethanol as a solvent
publisher	Universidad del Bío-Bío
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100458
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Biochemical features of organic extractives from Eucalyptus and Corymbia woods using ethanol as a solvent

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