Hydrophilic Extractives in Heartwood of European Larch (Larix decidua Mill.)

The heartwood of two European larch trees was examined for the content of hydrophilic extractives. Ethanol was used as a solvent for extractions of adequately pretreated samples, while gas chromatography with flame ionisation detection (GC-FID), gas chromatography coupled to mass spectrometry (GC-MS...

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Autores principales:	Janja Zule, Katarina Čufar, Vesna Tišler
Formato:	article
Lenguaje:	EN
Publicado:	University of Zagreb, Faculty of Forestry and Wood Technology 2017
Materias:	European larch heartwood hydophilic extractives fl avonoids lignans chromatographic techniques Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/deb66706d65c46928d09edd5be868b55
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spelling	oai:doaj.org-article:deb66706d65c46928d09edd5be868b552021-12-02T05:11:08ZHydrophilic Extractives in Heartwood of European Larch (Larix decidua Mill.)10.5552/drind.2016.16180012-67721847-1153https://doaj.org/article/deb66706d65c46928d09edd5be868b552017-01-01T00:00:00Zhttp://hrcak.srce.hr/file/254614https://doaj.org/toc/0012-6772https://doaj.org/toc/1847-1153The heartwood of two European larch trees was examined for the content of hydrophilic extractives. Ethanol was used as a solvent for extractions of adequately pretreated samples, while gas chromatography with flame ionisation detection (GC-FID), gas chromatography coupled to mass spectrometry (GC-MS) and high performance size exclusion chromatography (HPLC-SEC) were applied for analyses. Different phenolic compounds, such as flavonoids and lignans were identified and quantitatively evaluated. The most abundant flavonoids were taxifolin and dihydrokaempferol, while the main lignan was secoisolariciresinol. Contents of flavonoids and lignans, measured at different stem heights, varied between 10.6 and 15.7 mg/g. At lower and medium heights flavonoids prevailed, while at upper stem positions the concentrations of lignans significantly increased. In addition, some trimeric and tetrameric phenolic structures were also detected. There was very little variation in the composition of hydrophilics between the two examined trees. The identified flavonoids and lignans are classified as very strong antioxidants.Janja ZuleKatarina ČufarVesna TišlerUniversity of Zagreb, Faculty of Forestry and Wood TechnologyarticleEuropean larchheartwoodhydophilic extractivesfl avonoidslignanschromatographic techniquesForestrySD1-669.5ENDrvna Industrija, Vol 67, Iss 4, Pp 363-370 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	European larch heartwood hydophilic extractives fl avonoids lignans chromatographic techniques Forestry SD1-669.5
spellingShingle	European larch heartwood hydophilic extractives fl avonoids lignans chromatographic techniques Forestry SD1-669.5 Janja Zule Katarina Čufar Vesna Tišler Hydrophilic Extractives in Heartwood of European Larch (Larix decidua Mill.)
description	The heartwood of two European larch trees was examined for the content of hydrophilic extractives. Ethanol was used as a solvent for extractions of adequately pretreated samples, while gas chromatography with flame ionisation detection (GC-FID), gas chromatography coupled to mass spectrometry (GC-MS) and high performance size exclusion chromatography (HPLC-SEC) were applied for analyses. Different phenolic compounds, such as flavonoids and lignans were identified and quantitatively evaluated. The most abundant flavonoids were taxifolin and dihydrokaempferol, while the main lignan was secoisolariciresinol. Contents of flavonoids and lignans, measured at different stem heights, varied between 10.6 and 15.7 mg/g. At lower and medium heights flavonoids prevailed, while at upper stem positions the concentrations of lignans significantly increased. In addition, some trimeric and tetrameric phenolic structures were also detected. There was very little variation in the composition of hydrophilics between the two examined trees. The identified flavonoids and lignans are classified as very strong antioxidants.
format	article
author	Janja Zule Katarina Čufar Vesna Tišler
author_facet	Janja Zule Katarina Čufar Vesna Tišler
author_sort	Janja Zule
title	Hydrophilic Extractives in Heartwood of European Larch (Larix decidua Mill.)
title_short	Hydrophilic Extractives in Heartwood of European Larch (Larix decidua Mill.)
title_full	Hydrophilic Extractives in Heartwood of European Larch (Larix decidua Mill.)
title_fullStr	Hydrophilic Extractives in Heartwood of European Larch (Larix decidua Mill.)
title_full_unstemmed	Hydrophilic Extractives in Heartwood of European Larch (Larix decidua Mill.)
title_sort	hydrophilic extractives in heartwood of european larch (larix decidua mill.)
publisher	University of Zagreb, Faculty of Forestry and Wood Technology
publishDate	2017
url	https://doaj.org/article/deb66706d65c46928d09edd5be868b55
work_keys_str_mv	AT janjazule hydrophilicextractivesinheartwoodofeuropeanlarchlarixdeciduamill AT katarinacufar hydrophilicextractivesinheartwoodofeuropeanlarchlarixdeciduamill AT vesnatisler hydrophilicextractivesinheartwoodofeuropeanlarchlarixdeciduamill
_version_	1718400565257437184

Hydrophilic Extractives in Heartwood of European Larch (Larix decidua Mill.)

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