EFFECT OF THE BENCH SCALE EXTRACTION CONDITIONS ON Pinus radiata BARK EXTRACT YIELD, ANTIOXIDANT PROPERTIES AND COMPOSITION

Many pine bark extracts have antioxidant properties. This work examined bench scale extraction on the yield, the composition and antioxidant properties of Pinus radiata. Acetone solvent (98.7% w/w at 120 °C) yielded maximum phenols concentration, tannins concentration, anti-radical activity (DPPH) a...

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Autores principales:	Ramos,Valentina, Bocalandro,Carlos, Riquelme,Sebastián, Sanhueza,Verónica, Aspé,Estrella, Roeckel,Marlene, Fernández,Katherina
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2013
Materias:	Antioxidant bark bench scale extraction conditions
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2013000100003
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spelling	oai:scielo:S0718-221X20130001000032013-06-17EFFECT OF THE BENCH SCALE EXTRACTION CONDITIONS ON Pinus radiata BARK EXTRACT YIELD, ANTIOXIDANT PROPERTIES AND COMPOSITIONRamos,ValentinaBocalandro,CarlosRiquelme,SebastiánSanhueza,VerónicaAspé,EstrellaRoeckel,MarleneFernández,Katherina Antioxidant bark bench scale extraction conditions Many pine bark extracts have antioxidant properties. This work examined bench scale extraction on the yield, the composition and antioxidant properties of Pinus radiata. Acetone solvent (98.7% w/w at 120 °C) yielded maximum phenols concentration, tannins concentration, anti-radical activity (DPPH) and reducing activity (FRAP), although its extraction yield was the lowest. When the organic solvent in the mixture decreased, the chelating activity increased (ICA) and antiradical and reducing activities decreased. The extract largest yield was obtained with water at 120ºC, but the antioxidant properties were relatively poor. Taxifolin (dihydroquercetin) and catechin were the main extract components detected by RP-HPLC. The best extraction conditions for high extractive yield and antioxidant properties was achieved with ethanol/water at 120 °C.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.15 n.1 20132013-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2013000100003en10.4067/S0718-221X2013005000003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Antioxidant bark bench scale extraction conditions
spellingShingle	Antioxidant bark bench scale extraction conditions Ramos,Valentina Bocalandro,Carlos Riquelme,Sebastián Sanhueza,Verónica Aspé,Estrella Roeckel,Marlene Fernández,Katherina EFFECT OF THE BENCH SCALE EXTRACTION CONDITIONS ON Pinus radiata BARK EXTRACT YIELD, ANTIOXIDANT PROPERTIES AND COMPOSITION
description	Many pine bark extracts have antioxidant properties. This work examined bench scale extraction on the yield, the composition and antioxidant properties of Pinus radiata. Acetone solvent (98.7% w/w at 120 °C) yielded maximum phenols concentration, tannins concentration, anti-radical activity (DPPH) and reducing activity (FRAP), although its extraction yield was the lowest. When the organic solvent in the mixture decreased, the chelating activity increased (ICA) and antiradical and reducing activities decreased. The extract largest yield was obtained with water at 120ºC, but the antioxidant properties were relatively poor. Taxifolin (dihydroquercetin) and catechin were the main extract components detected by RP-HPLC. The best extraction conditions for high extractive yield and antioxidant properties was achieved with ethanol/water at 120 °C.
author	Ramos,Valentina Bocalandro,Carlos Riquelme,Sebastián Sanhueza,Verónica Aspé,Estrella Roeckel,Marlene Fernández,Katherina
author_facet	Ramos,Valentina Bocalandro,Carlos Riquelme,Sebastián Sanhueza,Verónica Aspé,Estrella Roeckel,Marlene Fernández,Katherina
author_sort	Ramos,Valentina
title	EFFECT OF THE BENCH SCALE EXTRACTION CONDITIONS ON Pinus radiata BARK EXTRACT YIELD, ANTIOXIDANT PROPERTIES AND COMPOSITION
title_short	EFFECT OF THE BENCH SCALE EXTRACTION CONDITIONS ON Pinus radiata BARK EXTRACT YIELD, ANTIOXIDANT PROPERTIES AND COMPOSITION
title_full	EFFECT OF THE BENCH SCALE EXTRACTION CONDITIONS ON Pinus radiata BARK EXTRACT YIELD, ANTIOXIDANT PROPERTIES AND COMPOSITION
title_fullStr	EFFECT OF THE BENCH SCALE EXTRACTION CONDITIONS ON Pinus radiata BARK EXTRACT YIELD, ANTIOXIDANT PROPERTIES AND COMPOSITION
title_full_unstemmed	EFFECT OF THE BENCH SCALE EXTRACTION CONDITIONS ON Pinus radiata BARK EXTRACT YIELD, ANTIOXIDANT PROPERTIES AND COMPOSITION
title_sort	effect of the bench scale extraction conditions on pinus radiata bark extract yield, antioxidant properties and composition
publisher	Universidad del Bío-Bío
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2013000100003
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EFFECT OF THE BENCH SCALE EXTRACTION CONDITIONS ON Pinus radiata BARK EXTRACT YIELD, ANTIOXIDANT PROPERTIES AND COMPOSITION

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