Production, characterization and technological properties of biopolymer produced by Agrobacterium radiobacter k84

Detalhes bibliográficos
Autor(a) principal: Calliari, Caroline Maria
Data de Publicação: 2011
Outros Autores: Magnani, Marciane, Castro Gómez, Raúl Jorge Hernan
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
DOI: 10.5433/1679-0359.2011v32n2p633
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4841
Resumo: In this study, a biopolymer composed of carbohydrates (35%), protein (15%) and minerals (40%) was obtained through fermentation using sugar cane molasses as the sole carbon source for Agrobacterium radiobacter k84. The process yield was 10 gL-1 of biopolymer, which showed high solubility in water, neutral pH in aqueous solution and low water activity (0.52). The analysis in Scanning Electron Microscopy revealed microstructure characteristic of an amorphous solid, with particles of irregular shapes and sizes. In the evaluation of technological properties, the biopolymer showed formation of viscous solutions at room temperature from concentration of 0.5% in aqueous solution, gelling activity in solution at 2%, emulsifying (56.11±1.39%) and stabilizing activity (98.02±0.78%). The results suggest that the biopolymer from Agrobacterium radiobacter k84 is a promising candidate for industrial use.
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spelling Production, characterization and technological properties of biopolymer produced by Agrobacterium radiobacter k84Produção, caracterização e propriedades tecnológicas de um biopolímero produzido por Agrobacterium radiobacter k84Agrobacterium radiobacterBiopolymerSugar cane molassesFermentation.Agrobacterium radiobacterBiopolímeroMelaço de cana-de-açúcarFermentação.In this study, a biopolymer composed of carbohydrates (35%), protein (15%) and minerals (40%) was obtained through fermentation using sugar cane molasses as the sole carbon source for Agrobacterium radiobacter k84. The process yield was 10 gL-1 of biopolymer, which showed high solubility in water, neutral pH in aqueous solution and low water activity (0.52). The analysis in Scanning Electron Microscopy revealed microstructure characteristic of an amorphous solid, with particles of irregular shapes and sizes. In the evaluation of technological properties, the biopolymer showed formation of viscous solutions at room temperature from concentration of 0.5% in aqueous solution, gelling activity in solution at 2%, emulsifying (56.11±1.39%) and stabilizing activity (98.02±0.78%). The results suggest that the biopolymer from Agrobacterium radiobacter k84 is a promising candidate for industrial use.No presente estudo, utilizando melaço de cana-de-açúcar como única fonte de carbono para Agrobacterium radiobacter k84 foi obtido, em processo fermentativo, um biopolímero composto por carboidratos (35%), proteínas (15%) e minerais (40%). O rendimento do processo foi de 10 g.L-1 do biopolímero que apresentou elevada solubilidade em água, pH neutro em solução aquosa e baixa atividade de água (0.52). As análises em Microscopia Eletrônica de Varredura revelaram microestrutura característica de um sólido amorfo, com partículas de formas irregulares e tamanhos variáveis. Na avaliação das propriedades tecnológicas, o biopolímero mostrou viscosidade à temperatura ambiente a partir da concentração 0.5% em solução aquosa, atividade geleificante em solução a 2%, atividade emulsificante (56.11±0.78%) e estabilizante (98.02±1.39%). Os resultados sugerem o biopolímero de Agrobacterium radiobacter k84 como um candidato promissor para uso industrial.UEL2011-07-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa científica aplicadaapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/484110.5433/1679-0359.2011v32n2p633Semina: Ciências Agrárias; Vol. 32 No. 2 (2011); 633-644Semina: Ciências Agrárias; v. 32 n. 2 (2011); 633-6441679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4841/8423Calliari, Caroline MariaMagnani, MarcianeCastro Gómez, Raúl Jorge Hernaninfo:eu-repo/semantics/openAccess2016-03-09T17:00:22Zoai:ojs.pkp.sfu.ca:article/4841Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2016-03-09T17:00:22Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Production, characterization and technological properties of biopolymer produced by Agrobacterium radiobacter k84
Produção, caracterização e propriedades tecnológicas de um biopolímero produzido por Agrobacterium radiobacter k84
title Production, characterization and technological properties of biopolymer produced by Agrobacterium radiobacter k84
spellingShingle Production, characterization and technological properties of biopolymer produced by Agrobacterium radiobacter k84
Production, characterization and technological properties of biopolymer produced by Agrobacterium radiobacter k84
Calliari, Caroline Maria
Agrobacterium radiobacter
Biopolymer
Sugar cane molasses
Fermentation.
Agrobacterium radiobacter
Biopolímero
Melaço de cana-de-açúcar
Fermentação.
Calliari, Caroline Maria
Agrobacterium radiobacter
Biopolymer
Sugar cane molasses
Fermentation.
Agrobacterium radiobacter
Biopolímero
Melaço de cana-de-açúcar
Fermentação.
title_short Production, characterization and technological properties of biopolymer produced by Agrobacterium radiobacter k84
title_full Production, characterization and technological properties of biopolymer produced by Agrobacterium radiobacter k84
title_fullStr Production, characterization and technological properties of biopolymer produced by Agrobacterium radiobacter k84
Production, characterization and technological properties of biopolymer produced by Agrobacterium radiobacter k84
title_full_unstemmed Production, characterization and technological properties of biopolymer produced by Agrobacterium radiobacter k84
Production, characterization and technological properties of biopolymer produced by Agrobacterium radiobacter k84
title_sort Production, characterization and technological properties of biopolymer produced by Agrobacterium radiobacter k84
author Calliari, Caroline Maria
author_facet Calliari, Caroline Maria
Calliari, Caroline Maria
Magnani, Marciane
Castro Gómez, Raúl Jorge Hernan
Magnani, Marciane
Castro Gómez, Raúl Jorge Hernan
author_role author
author2 Magnani, Marciane
Castro Gómez, Raúl Jorge Hernan
author2_role author
author
dc.contributor.author.fl_str_mv Calliari, Caroline Maria
Magnani, Marciane
Castro Gómez, Raúl Jorge Hernan
dc.subject.por.fl_str_mv Agrobacterium radiobacter
Biopolymer
Sugar cane molasses
Fermentation.
Agrobacterium radiobacter
Biopolímero
Melaço de cana-de-açúcar
Fermentação.
topic Agrobacterium radiobacter
Biopolymer
Sugar cane molasses
Fermentation.
Agrobacterium radiobacter
Biopolímero
Melaço de cana-de-açúcar
Fermentação.
description In this study, a biopolymer composed of carbohydrates (35%), protein (15%) and minerals (40%) was obtained through fermentation using sugar cane molasses as the sole carbon source for Agrobacterium radiobacter k84. The process yield was 10 gL-1 of biopolymer, which showed high solubility in water, neutral pH in aqueous solution and low water activity (0.52). The analysis in Scanning Electron Microscopy revealed microstructure characteristic of an amorphous solid, with particles of irregular shapes and sizes. In the evaluation of technological properties, the biopolymer showed formation of viscous solutions at room temperature from concentration of 0.5% in aqueous solution, gelling activity in solution at 2%, emulsifying (56.11±1.39%) and stabilizing activity (98.02±0.78%). The results suggest that the biopolymer from Agrobacterium radiobacter k84 is a promising candidate for industrial use.
publishDate 2011
dc.date.none.fl_str_mv 2011-07-12
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa científica aplicada
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4841
10.5433/1679-0359.2011v32n2p633
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4841
identifier_str_mv 10.5433/1679-0359.2011v32n2p633
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4841/8423
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 UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 32 No. 2 (2011); 633-644
Semina: Ciências Agrárias; v. 32 n. 2 (2011); 633-644
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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dc.identifier.doi.none.fl_str_mv 10.5433/1679-0359.2011v32n2p633

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