Nanocelluloses from phormium (<i>Phormium tenax</i>) fibers

This work aimed in preparing nanocelluloses from a unique source of cellulose, viz. phormium (<i>Phormiun tenax</i>) fibers, by different techniques; and evaluate their physicochemical and structural properties. It was possible to obtain cellulose nanofibrils with different sizes (diamet...

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Autores principales: Di Giorgio, Luciana, Salgado, Pablo Rodrigo, Dufresne, Alain, Mauri, Adriana Noemí
Formato: Articulo
Lenguaje:Inglés
Publicado: 2020
Materias:
Ciencias Exactas
Química
Nanocelluloses
Cellulose nanocrystals
Cellulose nanofibrils
Endoglucanases
TEMPO
Structural characteristics
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/134864
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-134864
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Química
Nanocelluloses
Cellulose nanocrystals
Cellulose nanofibrils
Endoglucanases
TEMPO
Structural characteristics
spellingShingle Ciencias Exactas
Química
Nanocelluloses
Cellulose nanocrystals
Cellulose nanofibrils
Endoglucanases
TEMPO
Structural characteristics
Di Giorgio, Luciana
Salgado, Pablo Rodrigo
Dufresne, Alain
Mauri, Adriana Noemí
Nanocelluloses from phormium (<i>Phormium tenax</i>) fibers
topic_facet Ciencias Exactas
Química
Nanocelluloses
Cellulose nanocrystals
Cellulose nanofibrils
Endoglucanases
TEMPO
Structural characteristics
description This work aimed in preparing nanocelluloses from a unique source of cellulose, viz. phormium (<i>Phormiun tenax</i>) fibers, by different techniques; and evaluate their physicochemical and structural properties. It was possible to obtain cellulose nanofibrils with different sizes (diameter, length and aspect ratio), morphology, crystallinity and surface charge by mechanical disintegration of bleached and refined phormium fibers previously modified or not with enzymatic and oxidative treatments with endoglucanases and 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO), respectively. But it was not possible to prepare nanocrystals by acid hydrolysis, even when trying to modify the reaction conditions, possibly due at least partially to the presence of residual hemicelluloses and lignin. Process efficiency seemed to depend variably on the initial state of phormium (<i>Phormiun tenax</i>) fibers and the presence of other components such as lignin and hemicelluloses. These nanofibers could be used for different purposes in different areas according to their physicochemical characteristics.
format Articulo
Articulo
author Di Giorgio, Luciana
Salgado, Pablo Rodrigo
Dufresne, Alain
Mauri, Adriana Noemí
author_facet Di Giorgio, Luciana
Salgado, Pablo Rodrigo
Dufresne, Alain
Mauri, Adriana Noemí
author_sort Di Giorgio, Luciana
title Nanocelluloses from phormium (<i>Phormium tenax</i>) fibers
title_short Nanocelluloses from phormium (<i>Phormium tenax</i>) fibers
title_full Nanocelluloses from phormium (<i>Phormium tenax</i>) fibers
title_fullStr Nanocelluloses from phormium (<i>Phormium tenax</i>) fibers
title_full_unstemmed Nanocelluloses from phormium (<i>Phormium tenax</i>) fibers
title_sort nanocelluloses from phormium (<i>phormium tenax</i>) fibers
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/134864
work_keys_str_mv AT digiorgioluciana nanocellulosesfromphormiumiphormiumtenaxifibers
AT salgadopablorodrigo nanocellulosesfromphormiumiphormiumtenaxifibers
AT dufresnealain nanocellulosesfromphormiumiphormiumtenaxifibers
AT mauriadriananoemi nanocellulosesfromphormiumiphormiumtenaxifibers
bdutipo_str Repositorios
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