Chitin-glucan complex – Based biopolymeric structures using biocompatible ionic liquids

Detalhes bibliográficos
Autor(a) principal: Ferreira, Inês C.
Data de Publicação: 2020
Outros Autores: Araújo, Diana, Voisin, Pierre, Delgado Alves, Vitor, Rosatella, Andreia A., Afonso, Carlos A.M., Freitas, Filomena, Neves, Luísa A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/22093
Resumo: This work explores the novelty of dissolving chitin-glucan complex (CGC), from two fungal strains, Komagataella pastoris (CGCP) and Aspergillus niger (CGCKZ) (KiOnutrime-CG™), using biocompatible ionic liquids (ILs). Three cholinium-based ILs were tested, choline acetate, choline propionate and choline hexanoate. Although all tested ILs resulted in the dissolution of the co-polymer at a concentration of 5 % (w/w), distinct polymeric structures, films or gels, were obtained from CGCP and CGCKZ, respectively. CGCP films were dense, flexible and elastic, with high swelling capacity (> 200 %). The IL anion alkyl chain length influenced the polymeric structures’ properties, namely, the CGCP films elongation at break and swelling degree. CGCKZ resulted in weak gels. For both polymeric structures, exposure to the ILs under the dissolution conditions caused significant changes in the co-polymers’ chemical structure, namely, reduction of their glucan moiety and reduction of the degree of acetylation, thus yielding chitosan-glucan complexes (ChGC) enriched in glucosamine (53.4 ± 0.3–60.8 ± 0.3 %)
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spelling Chitin-glucan complex – Based biopolymeric structures using biocompatible ionic liquidschitin-glucan complex (CGC)biopolymersionic liquids (ILsfilmsgelsThis work explores the novelty of dissolving chitin-glucan complex (CGC), from two fungal strains, Komagataella pastoris (CGCP) and Aspergillus niger (CGCKZ) (KiOnutrime-CG™), using biocompatible ionic liquids (ILs). Three cholinium-based ILs were tested, choline acetate, choline propionate and choline hexanoate. Although all tested ILs resulted in the dissolution of the co-polymer at a concentration of 5 % (w/w), distinct polymeric structures, films or gels, were obtained from CGCP and CGCKZ, respectively. CGCP films were dense, flexible and elastic, with high swelling capacity (> 200 %). The IL anion alkyl chain length influenced the polymeric structures’ properties, namely, the CGCP films elongation at break and swelling degree. CGCKZ resulted in weak gels. For both polymeric structures, exposure to the ILs under the dissolution conditions caused significant changes in the co-polymers’ chemical structure, namely, reduction of their glucan moiety and reduction of the degree of acetylation, thus yielding chitosan-glucan complexes (ChGC) enriched in glucosamine (53.4 ± 0.3–60.8 ± 0.3 %)ElsevierRepositório da Universidade de LisboaFerreira, Inês C.Araújo, DianaVoisin, PierreDelgado Alves, VitorRosatella, Andreia A.Afonso, Carlos A.M.Freitas, FilomenaNeves, Luísa A.2021-09-29T10:57:09Z20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/22093engCarbohydrate Polymers Volume 247, 1 November 2020, 116679https://doi.org/10.1016/j.carbpol.2020.116679info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:51:39Zoai:www.repository.utl.pt:10400.5/22093Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:06:35.699648Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Chitin-glucan complex – Based biopolymeric structures using biocompatible ionic liquids
title Chitin-glucan complex – Based biopolymeric structures using biocompatible ionic liquids
spellingShingle Chitin-glucan complex – Based biopolymeric structures using biocompatible ionic liquids
Ferreira, Inês C.
chitin-glucan complex (CGC)
biopolymers
ionic liquids (ILs
films
gels
title_short Chitin-glucan complex – Based biopolymeric structures using biocompatible ionic liquids
title_full Chitin-glucan complex – Based biopolymeric structures using biocompatible ionic liquids
title_fullStr Chitin-glucan complex – Based biopolymeric structures using biocompatible ionic liquids
title_full_unstemmed Chitin-glucan complex – Based biopolymeric structures using biocompatible ionic liquids
title_sort Chitin-glucan complex – Based biopolymeric structures using biocompatible ionic liquids
author Ferreira, Inês C.
author_facet Ferreira, Inês C.
Araújo, Diana
Voisin, Pierre
Delgado Alves, Vitor
Rosatella, Andreia A.
Afonso, Carlos A.M.
Freitas, Filomena
Neves, Luísa A.
author_role author
author2 Araújo, Diana
Voisin, Pierre
Delgado Alves, Vitor
Rosatella, Andreia A.
Afonso, Carlos A.M.
Freitas, Filomena
Neves, Luísa A.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Ferreira, Inês C.
Araújo, Diana
Voisin, Pierre
Delgado Alves, Vitor
Rosatella, Andreia A.
Afonso, Carlos A.M.
Freitas, Filomena
Neves, Luísa A.
dc.subject.por.fl_str_mv chitin-glucan complex (CGC)
biopolymers
ionic liquids (ILs
films
gels
topic chitin-glucan complex (CGC)
biopolymers
ionic liquids (ILs
films
gels
description This work explores the novelty of dissolving chitin-glucan complex (CGC), from two fungal strains, Komagataella pastoris (CGCP) and Aspergillus niger (CGCKZ) (KiOnutrime-CG™), using biocompatible ionic liquids (ILs). Three cholinium-based ILs were tested, choline acetate, choline propionate and choline hexanoate. Although all tested ILs resulted in the dissolution of the co-polymer at a concentration of 5 % (w/w), distinct polymeric structures, films or gels, were obtained from CGCP and CGCKZ, respectively. CGCP films were dense, flexible and elastic, with high swelling capacity (> 200 %). The IL anion alkyl chain length influenced the polymeric structures’ properties, namely, the CGCP films elongation at break and swelling degree. CGCKZ resulted in weak gels. For both polymeric structures, exposure to the ILs under the dissolution conditions caused significant changes in the co-polymers’ chemical structure, namely, reduction of their glucan moiety and reduction of the degree of acetylation, thus yielding chitosan-glucan complexes (ChGC) enriched in glucosamine (53.4 ± 0.3–60.8 ± 0.3 %)
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-01-01T00:00:00Z
2021-09-29T10:57:09Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/22093
url http://hdl.handle.net/10400.5/22093
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Carbohydrate Polymers Volume 247, 1 November 2020, 116679
https://doi.org/10.1016/j.carbpol.2020.116679
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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