Seeing biomass recalcitrance through fluorescence

Abstract Lignocellulosic biomass is the only renewable carbon resource available in sufficient amount on Earth to go beyond the fossil-based carbon economy. Its transformation requires controlled breakdown of polymers into a set of molecules to make fuels, chemicals and materials. But biomass is a n...

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Autores principales:	Thomas Auxenfans, Christine Terryn, Gabriel Paës
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e7c9a06fb6f14b08b1f939769ff6c87f
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spelling	oai:doaj.org-article:e7c9a06fb6f14b08b1f939769ff6c87f2021-12-02T16:07:44ZSeeing biomass recalcitrance through fluorescence10.1038/s41598-017-08740-12045-2322https://doaj.org/article/e7c9a06fb6f14b08b1f939769ff6c87f2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08740-1https://doaj.org/toc/2045-2322Abstract Lignocellulosic biomass is the only renewable carbon resource available in sufficient amount on Earth to go beyond the fossil-based carbon economy. Its transformation requires controlled breakdown of polymers into a set of molecules to make fuels, chemicals and materials. But biomass is a network of various inter-connected polymers which are very difficult to deconstruct optimally. In particular, saccharification potential of lignocellulosic biomass depends on several complex chemical and physical factors. For the first time, an easily measurable fluorescence properties of steam-exploded biomass samples from miscanthus, poplar and wheat straw was shown to be directly correlated to their saccharification potential. Fluorescence can thus be advantageously used as a predictive method of biomass saccharification. The loss in fluorescence occurring after the steam explosion pretreatment and increasing with pretreatment severity does not originate from the loss in lignin content, but rather from a decrease of the lignin β-aryl-ether linkage content. Fluorescence lifetime analysis demonstrates that monolignols making lignin become highly conjugated after steam explosion pretreatment. These results reveal that lignin chemical composition is a more important feature to consider than its content to understand and to predict biomass saccharification.Thomas AuxenfansChristine TerrynGabriel PaësNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Thomas Auxenfans Christine Terryn Gabriel Paës Seeing biomass recalcitrance through fluorescence
description	Abstract Lignocellulosic biomass is the only renewable carbon resource available in sufficient amount on Earth to go beyond the fossil-based carbon economy. Its transformation requires controlled breakdown of polymers into a set of molecules to make fuels, chemicals and materials. But biomass is a network of various inter-connected polymers which are very difficult to deconstruct optimally. In particular, saccharification potential of lignocellulosic biomass depends on several complex chemical and physical factors. For the first time, an easily measurable fluorescence properties of steam-exploded biomass samples from miscanthus, poplar and wheat straw was shown to be directly correlated to their saccharification potential. Fluorescence can thus be advantageously used as a predictive method of biomass saccharification. The loss in fluorescence occurring after the steam explosion pretreatment and increasing with pretreatment severity does not originate from the loss in lignin content, but rather from a decrease of the lignin β-aryl-ether linkage content. Fluorescence lifetime analysis demonstrates that monolignols making lignin become highly conjugated after steam explosion pretreatment. These results reveal that lignin chemical composition is a more important feature to consider than its content to understand and to predict biomass saccharification.
format	article
author	Thomas Auxenfans Christine Terryn Gabriel Paës
author_facet	Thomas Auxenfans Christine Terryn Gabriel Paës
author_sort	Thomas Auxenfans
title	Seeing biomass recalcitrance through fluorescence
title_short	Seeing biomass recalcitrance through fluorescence
title_full	Seeing biomass recalcitrance through fluorescence
title_fullStr	Seeing biomass recalcitrance through fluorescence
title_full_unstemmed	Seeing biomass recalcitrance through fluorescence
title_sort	seeing biomass recalcitrance through fluorescence
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e7c9a06fb6f14b08b1f939769ff6c87f
work_keys_str_mv	AT thomasauxenfans seeingbiomassrecalcitrancethroughfluorescence AT christineterryn seeingbiomassrecalcitrancethroughfluorescence AT gabrielpaes seeingbiomassrecalcitrancethroughfluorescence
_version_	1718384752366452736

Seeing biomass recalcitrance through fluorescence

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