Effect of lactic acid and UV irradiation on the cassava and corn starches

Detalhes bibliográficos
Autor(a) principal: Franco,Célia Maria Landi
Data de Publicação: 2010
Outros Autores: Ogawa,Cristina, Rabachini,Taís, Rocha,Thais de Souza, Cereda,Marney Pascoli, Jane,Jay-lin
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Archives of Biology and Technology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200025
Resumo: In this work, the effect of lactic acid and UV irradiation on the physicochemical and structural characteristics of cassava and corn starches was evaluated. Only the modified cassava starch presented baking expansion capacity. From RVA, reduction of viscosity values, greater internal stability and none set back for modified cassava starch were observed. Modified corn starch did not show any peak viscosity. There were no significant differences in DSC thermal properties of treated and native starches. Amylopectin and amylose molecules from both the modified starches displayed some degradation. Molecular weight of cassava amylopectin was mostly preserved, whereas corn amylopectin was evenly attacked through the granule. Nevertheless, the B long branched chains of cassava amylopectin, with DP~37, were degraded whereas they were unchanged for corn amylopectin.
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spelling Effect of lactic acid and UV irradiation on the cassava and corn starchesstarchphotochemical treatmentexpansion capacitystructural and physicochemical characteristicsIn this work, the effect of lactic acid and UV irradiation on the physicochemical and structural characteristics of cassava and corn starches was evaluated. Only the modified cassava starch presented baking expansion capacity. From RVA, reduction of viscosity values, greater internal stability and none set back for modified cassava starch were observed. Modified corn starch did not show any peak viscosity. There were no significant differences in DSC thermal properties of treated and native starches. Amylopectin and amylose molecules from both the modified starches displayed some degradation. Molecular weight of cassava amylopectin was mostly preserved, whereas corn amylopectin was evenly attacked through the granule. Nevertheless, the B long branched chains of cassava amylopectin, with DP~37, were degraded whereas they were unchanged for corn amylopectin.Instituto de Tecnologia do Paraná - Tecpar2010-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200025Brazilian Archives of Biology and Technology v.53 n.2 2010reponame:Brazilian Archives of Biology and Technologyinstname:Instituto de Tecnologia do Paraná (Tecpar)instacron:TECPAR10.1590/S1516-89132010000200025info:eu-repo/semantics/openAccessFranco,Célia Maria LandiOgawa,CristinaRabachini,TaísRocha,Thais de SouzaCereda,Marney PascoliJane,Jay-lineng2010-04-06T00:00:00Zoai:scielo:S1516-89132010000200025Revistahttps://www.scielo.br/j/babt/https://old.scielo.br/oai/scielo-oai.phpbabt@tecpar.br||babt@tecpar.br1678-43241516-8913opendoar:2010-04-06T00:00Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)false
dc.title.none.fl_str_mv Effect of lactic acid and UV irradiation on the cassava and corn starches
title Effect of lactic acid and UV irradiation on the cassava and corn starches
spellingShingle Effect of lactic acid and UV irradiation on the cassava and corn starches
Franco,Célia Maria Landi
starch
photochemical treatment
expansion capacity
structural and physicochemical characteristics
title_short Effect of lactic acid and UV irradiation on the cassava and corn starches
title_full Effect of lactic acid and UV irradiation on the cassava and corn starches
title_fullStr Effect of lactic acid and UV irradiation on the cassava and corn starches
title_full_unstemmed Effect of lactic acid and UV irradiation on the cassava and corn starches
title_sort Effect of lactic acid and UV irradiation on the cassava and corn starches
author Franco,Célia Maria Landi
author_facet Franco,Célia Maria Landi
Ogawa,Cristina
Rabachini,Taís
Rocha,Thais de Souza
Cereda,Marney Pascoli
Jane,Jay-lin
author_role author
author2 Ogawa,Cristina
Rabachini,Taís
Rocha,Thais de Souza
Cereda,Marney Pascoli
Jane,Jay-lin
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Franco,Célia Maria Landi
Ogawa,Cristina
Rabachini,Taís
Rocha,Thais de Souza
Cereda,Marney Pascoli
Jane,Jay-lin
dc.subject.por.fl_str_mv starch
photochemical treatment
expansion capacity
structural and physicochemical characteristics
topic starch
photochemical treatment
expansion capacity
structural and physicochemical characteristics
description In this work, the effect of lactic acid and UV irradiation on the physicochemical and structural characteristics of cassava and corn starches was evaluated. Only the modified cassava starch presented baking expansion capacity. From RVA, reduction of viscosity values, greater internal stability and none set back for modified cassava starch were observed. Modified corn starch did not show any peak viscosity. There were no significant differences in DSC thermal properties of treated and native starches. Amylopectin and amylose molecules from both the modified starches displayed some degradation. Molecular weight of cassava amylopectin was mostly preserved, whereas corn amylopectin was evenly attacked through the granule. Nevertheless, the B long branched chains of cassava amylopectin, with DP~37, were degraded whereas they were unchanged for corn amylopectin.
publishDate 2010
dc.date.none.fl_str_mv 2010-04-01
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=S1516-89132010000200025
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200025
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-89132010000200025
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 Instituto de Tecnologia do Paraná - Tecpar
publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
dc.source.none.fl_str_mv Brazilian Archives of Biology and Technology v.53 n.2 2010
reponame:Brazilian Archives of Biology and Technology
instname:Instituto de Tecnologia do Paraná (Tecpar)
instacron:TECPAR
instname_str Instituto de Tecnologia do Paraná (Tecpar)
instacron_str TECPAR
institution TECPAR
reponame_str Brazilian Archives of Biology and Technology
collection Brazilian Archives of Biology and Technology
repository.name.fl_str_mv Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)
repository.mail.fl_str_mv babt@tecpar.br||babt@tecpar.br
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