Origin and characterisation of the extractable colour of oak heartwood used for ageing spirits

Abstract In this study, investigation is focused on the soluble part of oak heartwood colour, with the objective of defining its impact on the colour of spirits after a barrel ageing. Colour is an important parameter for estimating the quality of many beverages and food items. Acetone with 30% water...

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Main Authors:	Nicolas Vivas, Marie-Françoise Bourden-Nonier, Nathalie Vivas de Gaulejac, Claire Mouche, Cybille Rossy
Format:	Article
Language:	English
Published:	SpringerOpen 2020-03-01
Series:	Journal of Wood Science
Subjects:	Quercus Colour Heartwood Ellagitannins Oxidation Polymerisation
Online Access:	https://doi.org/10.1186/s10086-020-01866-3

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spelling	doaj-20ce95bea6734b089971ae851c44d4e92021-03-21T12:29:54ZengSpringerOpenJournal of Wood Science1435-02111611-46632020-03-016611910.1186/s10086-020-01866-3Origin and characterisation of the extractable colour of oak heartwood used for ageing spiritsNicolas Vivas0Marie-Françoise Bourden-Nonier1Nathalie Vivas de Gaulejac2Claire Mouche3Cybille Rossy4Demptos Research Center, Bordeaux University, Institute of Molecular SciencesDemptos Research Center, Bordeaux University, Institute of Molecular SciencesDemptos Research Center, Bordeaux University, Institute of Molecular SciencesBordeaux University, Institute of Molecular SciencesBordeaux University, Institute of Molecular SciencesAbstract In this study, investigation is focused on the soluble part of oak heartwood colour, with the objective of defining its impact on the colour of spirits after a barrel ageing. Colour is an important parameter for estimating the quality of many beverages and food items. Acetone with 30% water permitted a fast and complete extraction of the soluble colouring matter of heartwood. Water is necessary to improve the extraction of wood fibres by hydration. In heartwood, the repartition of colour is heterogeneous. The outer heartwood, which is new wood, presents a lower soluble colour than the inner heartwood, which is older. This difference is due to the polymerisation by oxidation of the ellagitannins during the natural process of wood ageing and the copolymerisation of cell-wall polymers as polysaccharides.https://doi.org/10.1186/s10086-020-01866-3QuercusColourHeartwoodEllagitanninsOxidationPolymerisation
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Nicolas Vivas Marie-Françoise Bourden-Nonier Nathalie Vivas de Gaulejac Claire Mouche Cybille Rossy
spellingShingle	Nicolas Vivas Marie-Françoise Bourden-Nonier Nathalie Vivas de Gaulejac Claire Mouche Cybille Rossy Origin and characterisation of the extractable colour of oak heartwood used for ageing spirits Journal of Wood Science Quercus Colour Heartwood Ellagitannins Oxidation Polymerisation
author_facet	Nicolas Vivas Marie-Françoise Bourden-Nonier Nathalie Vivas de Gaulejac Claire Mouche Cybille Rossy
author_sort	Nicolas Vivas
title	Origin and characterisation of the extractable colour of oak heartwood used for ageing spirits
title_short	Origin and characterisation of the extractable colour of oak heartwood used for ageing spirits
title_full	Origin and characterisation of the extractable colour of oak heartwood used for ageing spirits
title_fullStr	Origin and characterisation of the extractable colour of oak heartwood used for ageing spirits
title_full_unstemmed	Origin and characterisation of the extractable colour of oak heartwood used for ageing spirits
title_sort	origin and characterisation of the extractable colour of oak heartwood used for ageing spirits
publisher	SpringerOpen
series	Journal of Wood Science
issn	1435-0211 1611-4663
publishDate	2020-03-01
description	Abstract In this study, investigation is focused on the soluble part of oak heartwood colour, with the objective of defining its impact on the colour of spirits after a barrel ageing. Colour is an important parameter for estimating the quality of many beverages and food items. Acetone with 30% water permitted a fast and complete extraction of the soluble colouring matter of heartwood. Water is necessary to improve the extraction of wood fibres by hydration. In heartwood, the repartition of colour is heterogeneous. The outer heartwood, which is new wood, presents a lower soluble colour than the inner heartwood, which is older. This difference is due to the polymerisation by oxidation of the ellagitannins during the natural process of wood ageing and the copolymerisation of cell-wall polymers as polysaccharides.
topic	Quercus Colour Heartwood Ellagitannins Oxidation Polymerisation
url	https://doi.org/10.1186/s10086-020-01866-3
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Origin and characterisation of the extractable colour of oak heartwood used for ageing spirits

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