Physical properties of sunflower seeds during drying
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/23765 |
Resumo: | The aim of this work was to determine the effect that the moisture content has on the physical properties of sunflower seeds. The cultivar Olisun 3, with an initial moisture content of 34.1 (% wb), was used and then subjected to drying in an oven with forced air ventilation under three temperature conditions: 40, 60 and 80 °C. The reduction in the moisture content during drying was monitored by the gravimetric method until it reached a final moisture content of 8.0 ± 1.0 (% wb). The physical properties were analysed: the bulk density, true density, intergranular porosity and volumetric shrinkage of the mass and unit and terminal velocity. The reduction in the moisture content influenced the physical properties of sunflower seeds and caused a decrease in the intergranular porosity, bulk density and true density at all examined temperatures. The mass and volumetric contractions of the unit and reduction in shrinkage rates all increased with the drying of sunflower seeds at all studied temperatures. The terminal velocity increased as the moisture content of the grains increased, which was more evident at the drying temperature of 80 °C. |
id |
UEL-11_840e6ca20f29ea5f1a2e9580c5ff9cf2 |
---|---|
oai_identifier_str |
oai:ojs.pkp.sfu.ca:article/23765 |
network_acronym_str |
UEL-11 |
network_name_str |
Semina. Ciências Agrárias (Online) |
repository_id_str |
|
spelling |
Physical properties of sunflower seeds during dryingPropriedades físicas dos grãos de girassol durante a secagemMoisture contentHelianthus annuuIntergranular porosityVolumetric shrinkage.Teor de águaContração volumétricaHelianthus annuusPorosidade intergranularContração volumétrica.The aim of this work was to determine the effect that the moisture content has on the physical properties of sunflower seeds. The cultivar Olisun 3, with an initial moisture content of 34.1 (% wb), was used and then subjected to drying in an oven with forced air ventilation under three temperature conditions: 40, 60 and 80 °C. The reduction in the moisture content during drying was monitored by the gravimetric method until it reached a final moisture content of 8.0 ± 1.0 (% wb). The physical properties were analysed: the bulk density, true density, intergranular porosity and volumetric shrinkage of the mass and unit and terminal velocity. The reduction in the moisture content influenced the physical properties of sunflower seeds and caused a decrease in the intergranular porosity, bulk density and true density at all examined temperatures. The mass and volumetric contractions of the unit and reduction in shrinkage rates all increased with the drying of sunflower seeds at all studied temperatures. The terminal velocity increased as the moisture content of the grains increased, which was more evident at the drying temperature of 80 °C.Objetivou-se neste trabalho, determinar o efeito do teor de água sobre as propriedades físicas dos grãos de girassol. Foram utilizados grãos da cultivar Olisun 3 com teor de água inicial de 34,1 (% b.u.) e posteriormente submetidos à secagem em estufa com ventilação de ar forçada em três condições de temperatura: 40, 60 e 80 ºC. A redução do teor de água ao longo da secagem foi acompanhada pelo método gravimétrico, conhecendo-se o teor de água inicial do produto, até atingir o teor de água final de 8,0 ± 1,0 (% b.u.). As propriedades físicas analisadas foram: massas específicas aparente e unitária, porosidade intergranular, bem como contração volumétrica da massa e unitária e velocidade terminal. A redução do teor de água influencia as propriedades físicas dos grãos de girassol, proporcionando a diminuição da porosidade intergranular e das massas específicas aparente e unitária em todas as temperaturas de secagem analisadas. As contrações volumétricas da massa e unitária diminuem e os índices de contração aumentam com a secagem dos grãos de girassol em todas as temperaturas avaliadas. A velocidade terminal aumenta à medida que eleva o teor de água dos grãos, sendo mais evidente na temperatura de secagem de 80 oC.UEL2017-03-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresPesquisa Empírica de Campoapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2376510.5433/1679-0359.2017v38n1p157Semina: Ciências Agrárias; Vol. 38 No. 1 (2017); 157-164Semina: Ciências Agrárias; v. 38 n. 1 (2017); 157-1641679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/23765/20669Copyright (c) 2017 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessSmaniotto, Thaís Adriana de SouzaResende, OsvaldoSousa, Kelly Aparecida deCampos, Rafael CândidoGuimarães, Denner NogueiraRodrigues, Gabrielly Bernardes2022-11-29T15:03:10Zoai:ojs.pkp.sfu.ca:article/23765Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-11-29T15:03:10Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Physical properties of sunflower seeds during drying Propriedades físicas dos grãos de girassol durante a secagem |
title |
Physical properties of sunflower seeds during drying |
spellingShingle |
Physical properties of sunflower seeds during drying Smaniotto, Thaís Adriana de Souza Moisture content Helianthus annuu Intergranular porosity Volumetric shrinkage. Teor de água Contração volumétrica Helianthus annuus Porosidade intergranular Contração volumétrica. |
title_short |
Physical properties of sunflower seeds during drying |
title_full |
Physical properties of sunflower seeds during drying |
title_fullStr |
Physical properties of sunflower seeds during drying |
title_full_unstemmed |
Physical properties of sunflower seeds during drying |
title_sort |
Physical properties of sunflower seeds during drying |
author |
Smaniotto, Thaís Adriana de Souza |
author_facet |
Smaniotto, Thaís Adriana de Souza Resende, Osvaldo Sousa, Kelly Aparecida de Campos, Rafael Cândido Guimarães, Denner Nogueira Rodrigues, Gabrielly Bernardes |
author_role |
author |
author2 |
Resende, Osvaldo Sousa, Kelly Aparecida de Campos, Rafael Cândido Guimarães, Denner Nogueira Rodrigues, Gabrielly Bernardes |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Smaniotto, Thaís Adriana de Souza Resende, Osvaldo Sousa, Kelly Aparecida de Campos, Rafael Cândido Guimarães, Denner Nogueira Rodrigues, Gabrielly Bernardes |
dc.subject.por.fl_str_mv |
Moisture content Helianthus annuu Intergranular porosity Volumetric shrinkage. Teor de água Contração volumétrica Helianthus annuus Porosidade intergranular Contração volumétrica. |
topic |
Moisture content Helianthus annuu Intergranular porosity Volumetric shrinkage. Teor de água Contração volumétrica Helianthus annuus Porosidade intergranular Contração volumétrica. |
description |
The aim of this work was to determine the effect that the moisture content has on the physical properties of sunflower seeds. The cultivar Olisun 3, with an initial moisture content of 34.1 (% wb), was used and then subjected to drying in an oven with forced air ventilation under three temperature conditions: 40, 60 and 80 °C. The reduction in the moisture content during drying was monitored by the gravimetric method until it reached a final moisture content of 8.0 ± 1.0 (% wb). The physical properties were analysed: the bulk density, true density, intergranular porosity and volumetric shrinkage of the mass and unit and terminal velocity. The reduction in the moisture content influenced the physical properties of sunflower seeds and caused a decrease in the intergranular porosity, bulk density and true density at all examined temperatures. The mass and volumetric contractions of the unit and reduction in shrinkage rates all increased with the drying of sunflower seeds at all studied temperatures. The terminal velocity increased as the moisture content of the grains increased, which was more evident at the drying temperature of 80 °C. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-03-02 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado por pares Pesquisa Empírica de Campo |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/23765 10.5433/1679-0359.2017v38n1p157 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/23765 |
identifier_str_mv |
10.5433/1679-0359.2017v38n1p157 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/23765/20669 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
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. 38 No. 1 (2017); 157-164 Semina: Ciências Agrárias; v. 38 n. 1 (2017); 157-164 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 |
_version_ |
1799306075196882944 |