Durable Biopolymer Films From Lignin-Carbohydrate Complex Derived From a Pulp Mill Side Stream

Valorization of side streams offers novel types of raw materials to complement or replace synthetic and food-based alternatives in materials science, increasing profitability and decreasing the environmental impacts of biorefineries. Lignocellulose biomass contains lignin and carbohydrates that are...

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Autores principales:	Brita Asikanius, Anna-Stiina Jääskeläinen, Hanna Koivula, Petri Oinonen, Monika Österberg
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	lignin-carbohydrate complex LCC biopolymer film lignocellulose biomass side stream valorization mechanical properties General Works A
Acceso en línea:	https://doaj.org/article/398ccca6a3934409a966e4c6714871b7
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spelling	oai:doaj.org-article:398ccca6a3934409a966e4c6714871b72021-11-30T22:38:09ZDurable Biopolymer Films From Lignin-Carbohydrate Complex Derived From a Pulp Mill Side Stream2296-598X10.3389/fenrg.2021.782545https://doaj.org/article/398ccca6a3934409a966e4c6714871b72021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fenrg.2021.782545/fullhttps://doaj.org/toc/2296-598XValorization of side streams offers novel types of raw materials to complement or replace synthetic and food-based alternatives in materials science, increasing profitability and decreasing the environmental impacts of biorefineries. Lignocellulose biomass contains lignin and carbohydrates that are covalently linked into lignin-carbohydrate complexes (LCCs). In biomass fractionation processes, these complexes are conventionally considered as waste, which hinders the biomass fractionation process, and they may solubilize into aqueous effluents. This study presents how LCCs, derived from pulp mill effluent, can be turned into valuable biopolymers for industrial polymer film applications. Free-standing composite films containing hydroxyethyl cellulose (HEC) and LCCs with varying molar mass, charge density and lignin/hemicellulose ratio were prepared to study the effect of LCC amount on mechanical properties and oxygen permeability. Increasing the LCC content increased the yield point and Young’s modulus of the films. Breaking strain measurements revealed a non-linear correlation with the LCC concentration for the samples with higher lignin than hemicellulose content. The addition of LCC enhanced oxygen barrier properties of HEC films significantly even at high relative humidity. The present research demonstrates how a currently underutilized fraction of the biorefinery side stream has the potential to be valorized as a biopolymer in industrial applications, for example as a barrier film for paper and board packaging.Brita AsikaniusBrita AsikaniusAnna-Stiina JääskeläinenHanna KoivulaPetri OinonenMonika ÖsterbergFrontiers Media S.A.articlelignin-carbohydrate complexLCCbiopolymer filmlignocellulose biomassside stream valorizationmechanical propertiesGeneral WorksAENFrontiers in Energy Research, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	lignin-carbohydrate complex LCC biopolymer film lignocellulose biomass side stream valorization mechanical properties General Works A
spellingShingle	lignin-carbohydrate complex LCC biopolymer film lignocellulose biomass side stream valorization mechanical properties General Works A Brita Asikanius Brita Asikanius Anna-Stiina Jääskeläinen Hanna Koivula Petri Oinonen Monika Österberg Durable Biopolymer Films From Lignin-Carbohydrate Complex Derived From a Pulp Mill Side Stream
description	Valorization of side streams offers novel types of raw materials to complement or replace synthetic and food-based alternatives in materials science, increasing profitability and decreasing the environmental impacts of biorefineries. Lignocellulose biomass contains lignin and carbohydrates that are covalently linked into lignin-carbohydrate complexes (LCCs). In biomass fractionation processes, these complexes are conventionally considered as waste, which hinders the biomass fractionation process, and they may solubilize into aqueous effluents. This study presents how LCCs, derived from pulp mill effluent, can be turned into valuable biopolymers for industrial polymer film applications. Free-standing composite films containing hydroxyethyl cellulose (HEC) and LCCs with varying molar mass, charge density and lignin/hemicellulose ratio were prepared to study the effect of LCC amount on mechanical properties and oxygen permeability. Increasing the LCC content increased the yield point and Young’s modulus of the films. Breaking strain measurements revealed a non-linear correlation with the LCC concentration for the samples with higher lignin than hemicellulose content. The addition of LCC enhanced oxygen barrier properties of HEC films significantly even at high relative humidity. The present research demonstrates how a currently underutilized fraction of the biorefinery side stream has the potential to be valorized as a biopolymer in industrial applications, for example as a barrier film for paper and board packaging.
format	article
author	Brita Asikanius Brita Asikanius Anna-Stiina Jääskeläinen Hanna Koivula Petri Oinonen Monika Österberg
author_facet	Brita Asikanius Brita Asikanius Anna-Stiina Jääskeläinen Hanna Koivula Petri Oinonen Monika Österberg
author_sort	Brita Asikanius
title	Durable Biopolymer Films From Lignin-Carbohydrate Complex Derived From a Pulp Mill Side Stream
title_short	Durable Biopolymer Films From Lignin-Carbohydrate Complex Derived From a Pulp Mill Side Stream
title_full	Durable Biopolymer Films From Lignin-Carbohydrate Complex Derived From a Pulp Mill Side Stream
title_fullStr	Durable Biopolymer Films From Lignin-Carbohydrate Complex Derived From a Pulp Mill Side Stream
title_full_unstemmed	Durable Biopolymer Films From Lignin-Carbohydrate Complex Derived From a Pulp Mill Side Stream
title_sort	durable biopolymer films from lignin-carbohydrate complex derived from a pulp mill side stream
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/398ccca6a3934409a966e4c6714871b7
work_keys_str_mv	AT britaasikanius durablebiopolymerfilmsfromlignincarbohydratecomplexderivedfromapulpmillsidestream AT britaasikanius durablebiopolymerfilmsfromlignincarbohydratecomplexderivedfromapulpmillsidestream AT annastiinajaaskelainen durablebiopolymerfilmsfromlignincarbohydratecomplexderivedfromapulpmillsidestream AT hannakoivula durablebiopolymerfilmsfromlignincarbohydratecomplexderivedfromapulpmillsidestream AT petrioinonen durablebiopolymerfilmsfromlignincarbohydratecomplexderivedfromapulpmillsidestream AT monikaosterberg durablebiopolymerfilmsfromlignincarbohydratecomplexderivedfromapulpmillsidestream
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Durable Biopolymer Films From Lignin-Carbohydrate Complex Derived From a Pulp Mill Side Stream

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