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Pine Cone Biorefinery: Integral Valorization of Residual Biomass into Lignocellulose Nanofibrils (LCNF)-Reinforced Composites for Packaging

Trifol, Jon and Quintero, Diana Catalina Marin and Moriana, Rosana (2021). Pine Cone Biorefinery: Integral Valorization of Residual Biomass into Lignocellulose Nanofibrils (LCNF)-Reinforced Composites for Packaging. ACS Sustainable Chemistry and Engineering. 9 , 2180-2190
[Research article]

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Abstract

Presented herein is the integral valorization of residual biomass to film composites by their fractionation into building blocks in a multicomponent cascade isolation approach. First, pine cones were subjected to alkaline pretreatment, followed by soda pulping. Two different hemicellulose/lignin-based fractions were recovered from the extractives of these treatments, with a yield of 19%. Then, chloride- and peroxide-based bleaching methods were proposed to treat the soda-pulped samples, obtaining two cellulose-rich fractions with different chemical compositions and recovery yields (32% and 44%, respectively). From these cellulose fractions, two types of nanocelluloses with different lignin contents were obtained: cellulose nanofibrils (CNF), with a lignin content of 1%, and lignocellulose nanofibrils (LCNF), with a lignin content of 16%. The LCNF displayed lower crystallinity and viscosity but greater diameter and thermal stability than the CNF. The reinforcing capability of different amounts of both nanocelluloses on the first hemicellulose/lignin-based fraction (PCA-L) to form films was evaluated. The thermomechanical, barrier, antioxidant, moisture sorption, and mechanical properties were assessed and compared. In general, the LCNF films showed less moisture sorption and better thermomechanical and antioxidant properties than the CNF films. These results reveal LCNF to be a promising reinforcing agent for designing all-lignocellulose-based composite films to be used in food packaging applications.

Authors/Creators:Trifol, Jon and Quintero, Diana Catalina Marin and Moriana, Rosana
Title:Pine Cone Biorefinery: Integral Valorization of Residual Biomass into Lignocellulose Nanofibrils (LCNF)-Reinforced Composites for Packaging
Series Name/Journal:ACS Sustainable Chemistry and Engineering
Year of publishing :2021
Volume:9
Page range:2180-2190
Number of Pages:11
Publisher:AMER CHEMICAL SOC
ISSN:2168-0485
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 2 Engineering and Technology > 205 Materials Engineering > Composite Science and Engineering
Keywords:Biomass integral fractionization, Nanocelluloses, Biobased nanocomposites, Gas barrier properties, Thermomechanical properties, Food packaging films
URN:NBN:urn:nbn:se:slu:epsilon-p-110984
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-110984
Additional ID:
Type of IDID
DOI10.1021/acssuschemeng.0c07687
Web of Science (WoS)000618670600019
ID Code:22734
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Molecular Sciences
Deposited By: SLUpub Connector
Deposited On:11 Mar 2021 11:03
Metadata Last Modified:11 Mar 2021 11:11

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