Effect of shrimp shells milling on the molar mass of chitosan
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Polímeros (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282017000100041 |
Resumo: | Abstract Shrimp shells are a raw material rich in chitin, a precursor of chitosan biopolymer. The variables of processing (demineralization, deproteination and deacetylation) can be manipulated to determine the main characteristics of chitosan, the degree of deacetylation (DD), and average molar mass. This study evaluated the influence of one of the unit operations of shrimp shell physical processing, the milling, on the final product characteristic, chitosan. After different milling conditions, the raw material was subjected to standard chemical processing for chitin extraction, followed by deacetylation to obtain chitosan, which is characterized by 1H NMR, SEM, XRD, N2 physisorption (BET) and viscometry. The results indicated that the milling time of the raw material can be manipulated to increase the material depolymerization, significantly influencing the molecular weight reduction of chitosan a desirable feature for many applications of this biopolymer, and usually obtained by complex chemical and enzymatic methods. |
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Polímeros (São Carlos. Online) |
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Effect of shrimp shells milling on the molar mass of chitosanbiopolymerschitosandegree of polymerization (DP)viscosityparticle size distributionAbstract Shrimp shells are a raw material rich in chitin, a precursor of chitosan biopolymer. The variables of processing (demineralization, deproteination and deacetylation) can be manipulated to determine the main characteristics of chitosan, the degree of deacetylation (DD), and average molar mass. This study evaluated the influence of one of the unit operations of shrimp shell physical processing, the milling, on the final product characteristic, chitosan. After different milling conditions, the raw material was subjected to standard chemical processing for chitin extraction, followed by deacetylation to obtain chitosan, which is characterized by 1H NMR, SEM, XRD, N2 physisorption (BET) and viscometry. The results indicated that the milling time of the raw material can be manipulated to increase the material depolymerization, significantly influencing the molecular weight reduction of chitosan a desirable feature for many applications of this biopolymer, and usually obtained by complex chemical and enzymatic methods.Associação Brasileira de Polímeros2017-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282017000100041Polímeros v.27 n.1 2017reponame:Polímeros (São Carlos. Online)instname:Associação Brasileira de Polímeros (ABPol)instacron:ABPO10.1590/0104-1428.2354info:eu-repo/semantics/openAccessAlves,Helton JoséFurman,MaristelaKugelmeier,Cristie LuisOliveira,Clayton Rodrigues deBach,Vanessa RossatoLupatini,Karine NataniNeves,Andressa CarolineArantes,Mabel Karinaeng2017-06-20T00:00:00Zoai:scielo:S0104-14282017000100041Revistahttp://www.scielo.br/pohttps://old.scielo.br/oai/scielo-oai.php||revista@abpol.org.br1678-51690104-1428opendoar:2017-06-20T00:00Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)false |
dc.title.none.fl_str_mv |
Effect of shrimp shells milling on the molar mass of chitosan |
title |
Effect of shrimp shells milling on the molar mass of chitosan |
spellingShingle |
Effect of shrimp shells milling on the molar mass of chitosan Alves,Helton José biopolymers chitosan degree of polymerization (DP) viscosity particle size distribution |
title_short |
Effect of shrimp shells milling on the molar mass of chitosan |
title_full |
Effect of shrimp shells milling on the molar mass of chitosan |
title_fullStr |
Effect of shrimp shells milling on the molar mass of chitosan |
title_full_unstemmed |
Effect of shrimp shells milling on the molar mass of chitosan |
title_sort |
Effect of shrimp shells milling on the molar mass of chitosan |
author |
Alves,Helton José |
author_facet |
Alves,Helton José Furman,Maristela Kugelmeier,Cristie Luis Oliveira,Clayton Rodrigues de Bach,Vanessa Rossato Lupatini,Karine Natani Neves,Andressa Caroline Arantes,Mabel Karina |
author_role |
author |
author2 |
Furman,Maristela Kugelmeier,Cristie Luis Oliveira,Clayton Rodrigues de Bach,Vanessa Rossato Lupatini,Karine Natani Neves,Andressa Caroline Arantes,Mabel Karina |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Alves,Helton José Furman,Maristela Kugelmeier,Cristie Luis Oliveira,Clayton Rodrigues de Bach,Vanessa Rossato Lupatini,Karine Natani Neves,Andressa Caroline Arantes,Mabel Karina |
dc.subject.por.fl_str_mv |
biopolymers chitosan degree of polymerization (DP) viscosity particle size distribution |
topic |
biopolymers chitosan degree of polymerization (DP) viscosity particle size distribution |
description |
Abstract Shrimp shells are a raw material rich in chitin, a precursor of chitosan biopolymer. The variables of processing (demineralization, deproteination and deacetylation) can be manipulated to determine the main characteristics of chitosan, the degree of deacetylation (DD), and average molar mass. This study evaluated the influence of one of the unit operations of shrimp shell physical processing, the milling, on the final product characteristic, chitosan. After different milling conditions, the raw material was subjected to standard chemical processing for chitin extraction, followed by deacetylation to obtain chitosan, which is characterized by 1H NMR, SEM, XRD, N2 physisorption (BET) and viscometry. The results indicated that the milling time of the raw material can be manipulated to increase the material depolymerization, significantly influencing the molecular weight reduction of chitosan a desirable feature for many applications of this biopolymer, and usually obtained by complex chemical and enzymatic methods. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282017000100041 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282017000100041 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0104-1428.2354 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Polímeros |
publisher.none.fl_str_mv |
Associação Brasileira de Polímeros |
dc.source.none.fl_str_mv |
Polímeros v.27 n.1 2017 reponame:Polímeros (São Carlos. Online) instname:Associação Brasileira de Polímeros (ABPol) instacron:ABPO |
instname_str |
Associação Brasileira de Polímeros (ABPol) |
instacron_str |
ABPO |
institution |
ABPO |
reponame_str |
Polímeros (São Carlos. Online) |
collection |
Polímeros (São Carlos. Online) |
repository.name.fl_str_mv |
Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol) |
repository.mail.fl_str_mv |
||revista@abpol.org.br |
_version_ |
1754212590049820672 |