Application of aqueous two phase systems based on polyethylene glycol and sodium citrate for the recovery of phenolic compounds from Eucalyptus wood

This paper proposes an alternative way to intensify the exploitation of Eucalyptus wood wastes before valorisation for energy production. An aqueous two-phase system (ATPS) based on PEG 2000 and sodium citrate was investigated for the recovery of phenolic compounds that could act as natural antioxid...

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Autores principales:	Xavier,Lucía, Freire,María Sonia, Vidal-Tato,Isabel, González-Álvarez,Julia
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2015
Materias:	Aqueous two-phase systems biomass wastes Eucalyptus wood natural antioxidants polyethylene glycol sodium citrate
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000200012
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spelling	oai:scielo:S0718-221X20150002000122015-06-17Application of aqueous two phase systems based on polyethylene glycol and sodium citrate for the recovery of phenolic compounds from Eucalyptus woodXavier,LucíaFreire,María SoniaVidal-Tato,IsabelGonzález-Álvarez,Julia Aqueous two-phase systems biomass wastes Eucalyptus wood natural antioxidants polyethylene glycol sodium citrate This paper proposes an alternative way to intensify the exploitation of Eucalyptus wood wastes before valorisation for energy production. An aqueous two-phase system (ATPS) based on PEG 2000 and sodium citrate was investigated for the recovery of phenolic compounds that could act as natural antioxidants for applications including cosmetics, pharmaceuticals, food additives and other industrial applications. The influence of the tie line length (TLL) (26,1-46,1%), extraction temperature (25-65ºC), extraction time (90-390 min) and phase settlement time (1-8 h) were studied. Phenolic compounds were concentrated preferentially in the PEG-rich phase. A partition coefficient of 38 and a total phenols yield of 1,29 mg gallic acid equivalent/100 mg wood dry basis were obtained under the operational conditions selected: TLL, 46,1%, temperature 65ºC, extraction time 90 min and settlement time 1 h. Analysis of the extracts by RP-HPLC-ESI-TOF confirmed the presence of various phenolic compounds with demonstrated antioxidant activity: monogalloyl glucose, (-)-gallic acid, ellagic acid and quercetin 3-O-rhamnoside.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.17 n.2 20152015-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000200012en10.4067/S0718-221X2015005000032
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Aqueous two-phase systems biomass wastes Eucalyptus wood natural antioxidants polyethylene glycol sodium citrate
spellingShingle	Aqueous two-phase systems biomass wastes Eucalyptus wood natural antioxidants polyethylene glycol sodium citrate Xavier,Lucía Freire,María Sonia Vidal-Tato,Isabel González-Álvarez,Julia Application of aqueous two phase systems based on polyethylene glycol and sodium citrate for the recovery of phenolic compounds from Eucalyptus wood
description	This paper proposes an alternative way to intensify the exploitation of Eucalyptus wood wastes before valorisation for energy production. An aqueous two-phase system (ATPS) based on PEG 2000 and sodium citrate was investigated for the recovery of phenolic compounds that could act as natural antioxidants for applications including cosmetics, pharmaceuticals, food additives and other industrial applications. The influence of the tie line length (TLL) (26,1-46,1%), extraction temperature (25-65ºC), extraction time (90-390 min) and phase settlement time (1-8 h) were studied. Phenolic compounds were concentrated preferentially in the PEG-rich phase. A partition coefficient of 38 and a total phenols yield of 1,29 mg gallic acid equivalent/100 mg wood dry basis were obtained under the operational conditions selected: TLL, 46,1%, temperature 65ºC, extraction time 90 min and settlement time 1 h. Analysis of the extracts by RP-HPLC-ESI-TOF confirmed the presence of various phenolic compounds with demonstrated antioxidant activity: monogalloyl glucose, (-)-gallic acid, ellagic acid and quercetin 3-O-rhamnoside.
author	Xavier,Lucía Freire,María Sonia Vidal-Tato,Isabel González-Álvarez,Julia
author_facet	Xavier,Lucía Freire,María Sonia Vidal-Tato,Isabel González-Álvarez,Julia
author_sort	Xavier,Lucía
title	Application of aqueous two phase systems based on polyethylene glycol and sodium citrate for the recovery of phenolic compounds from Eucalyptus wood
title_short	Application of aqueous two phase systems based on polyethylene glycol and sodium citrate for the recovery of phenolic compounds from Eucalyptus wood
title_full	Application of aqueous two phase systems based on polyethylene glycol and sodium citrate for the recovery of phenolic compounds from Eucalyptus wood
title_fullStr	Application of aqueous two phase systems based on polyethylene glycol and sodium citrate for the recovery of phenolic compounds from Eucalyptus wood
title_full_unstemmed	Application of aqueous two phase systems based on polyethylene glycol and sodium citrate for the recovery of phenolic compounds from Eucalyptus wood
title_sort	application of aqueous two phase systems based on polyethylene glycol and sodium citrate for the recovery of phenolic compounds from eucalyptus wood
publisher	Universidad del Bío-Bío
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000200012
work_keys_str_mv	AT xavierlucia applicationofaqueoustwophasesystemsbasedonpolyethyleneglycolandsodiumcitratefortherecoveryofphenoliccompoundsfromeucalyptuswood AT freiremariasonia applicationofaqueoustwophasesystemsbasedonpolyethyleneglycolandsodiumcitratefortherecoveryofphenoliccompoundsfromeucalyptuswood AT vidaltatoisabel applicationofaqueoustwophasesystemsbasedonpolyethyleneglycolandsodiumcitratefortherecoveryofphenoliccompoundsfromeucalyptuswood AT gonzalezalvarezjulia applicationofaqueoustwophasesystemsbasedonpolyethyleneglycolandsodiumcitratefortherecoveryofphenoliccompoundsfromeucalyptuswood
_version_	1714202601464004608

Application of aqueous two phase systems based on polyethylene glycol and sodium citrate for the recovery of phenolic compounds from Eucalyptus wood

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