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How Vine Shoots as Fillers Impact the Biodegradation of PHBV-Based Composites

Vine shoots are lignocellulosic agricultural residues. In addition to being an interesting source of polyphenols, they can be used as fillers in a poly(3-hydroxybutyrate-3-hydroxyvalerate) (PHBV) matrix to decrease the overall cost and to propose an alternative to non-biodegradable fossil-based mate...

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Detalles Bibliográficos
Autores principales: David, Grégoire, Michel, Julie, Gastaldi, Emmanuelle, Gontard, Nathalie, Angellier-Coussy, Hélène
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6982206/
https://www.ncbi.nlm.nih.gov/pubmed/31905702
http://dx.doi.org/10.3390/ijms21010228
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author David, Grégoire
Michel, Julie
Gastaldi, Emmanuelle
Gontard, Nathalie
Angellier-Coussy, Hélène
author_facet David, Grégoire
Michel, Julie
Gastaldi, Emmanuelle
Gontard, Nathalie
Angellier-Coussy, Hélène
author_sort David, Grégoire
collection PubMed
description Vine shoots are lignocellulosic agricultural residues. In addition to being an interesting source of polyphenols, they can be used as fillers in a poly(3-hydroxybutyrate-3-hydroxyvalerate) (PHBV) matrix to decrease the overall cost and to propose an alternative to non-biodegradable fossil-based materials. The objective of the present work was to investigate how the incorporation of vine shoots fillers and a preliminary polyphenol extraction step could impact the biodegradability of biocomposites. Biocomposites (20 wt %) were produced by microcompounding. The biodegradation of materials was assessed by respirometric tests in soil. The negative impact of polyphenols on the biodegradability of vine shoots was confirmed. This was supported by crystallinity measurements and scanning electron microscopy (SEM) observations, which showed no difference in structure nor morphology between virgin and exhausted vine shoots particles. The incorporation of vine shoots fillers in PHBV slightly accelerated the overall biodegradation kinetics. All the biocomposites produced were considered fully biodegradable according to the French and European standard NF EN 17033, allowing the conclusion that up-cycling vine shoots for the production of lignocellulosic fillers is a promising strategy to provide biodegradable materials in natural conditions. Moreover, in a biorefinery context, polyphenol extraction from vine shoots has the advantage of improving their biodegradability.
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spelling pubmed-69822062020-02-07 How Vine Shoots as Fillers Impact the Biodegradation of PHBV-Based Composites David, Grégoire Michel, Julie Gastaldi, Emmanuelle Gontard, Nathalie Angellier-Coussy, Hélène Int J Mol Sci Article Vine shoots are lignocellulosic agricultural residues. In addition to being an interesting source of polyphenols, they can be used as fillers in a poly(3-hydroxybutyrate-3-hydroxyvalerate) (PHBV) matrix to decrease the overall cost and to propose an alternative to non-biodegradable fossil-based materials. The objective of the present work was to investigate how the incorporation of vine shoots fillers and a preliminary polyphenol extraction step could impact the biodegradability of biocomposites. Biocomposites (20 wt %) were produced by microcompounding. The biodegradation of materials was assessed by respirometric tests in soil. The negative impact of polyphenols on the biodegradability of vine shoots was confirmed. This was supported by crystallinity measurements and scanning electron microscopy (SEM) observations, which showed no difference in structure nor morphology between virgin and exhausted vine shoots particles. The incorporation of vine shoots fillers in PHBV slightly accelerated the overall biodegradation kinetics. All the biocomposites produced were considered fully biodegradable according to the French and European standard NF EN 17033, allowing the conclusion that up-cycling vine shoots for the production of lignocellulosic fillers is a promising strategy to provide biodegradable materials in natural conditions. Moreover, in a biorefinery context, polyphenol extraction from vine shoots has the advantage of improving their biodegradability. MDPI 2019-12-28 /pmc/articles/PMC6982206/ /pubmed/31905702 http://dx.doi.org/10.3390/ijms21010228 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
David, Grégoire
Michel, Julie
Gastaldi, Emmanuelle
Gontard, Nathalie
Angellier-Coussy, Hélène
How Vine Shoots as Fillers Impact the Biodegradation of PHBV-Based Composites
title How Vine Shoots as Fillers Impact the Biodegradation of PHBV-Based Composites
title_full How Vine Shoots as Fillers Impact the Biodegradation of PHBV-Based Composites
title_fullStr How Vine Shoots as Fillers Impact the Biodegradation of PHBV-Based Composites
title_full_unstemmed How Vine Shoots as Fillers Impact the Biodegradation of PHBV-Based Composites
title_short How Vine Shoots as Fillers Impact the Biodegradation of PHBV-Based Composites
title_sort how vine shoots as fillers impact the biodegradation of phbv-based composites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6982206/
https://www.ncbi.nlm.nih.gov/pubmed/31905702
http://dx.doi.org/10.3390/ijms21010228
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