Determination of the volumetric shrinkage in jatropha seeds during drying - doi: 10.4025/actasciagron.v34i3.14402
Autor(a) principal: | |
---|---|
Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por eng |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14402 |
Resumo: | The objective of this study was to determine the geometric diameter of volumetric shrinkage in Jatropha seeds subjected to drying under six air conditions and to fit different mathematical models to the experimental values. Seeds with an approximate initial moisture content of 0.61 kgw kgdm-1 (kilogram of water per kilogram of dry matter) were dried in a convection oven at temperatures of 36, 45, 60, 75, 90, and 105°C until they reached a moisture content of 0.11 ± 0.006 kgw kgdm-1. The experimental data were fitted to five mathematical models used to represent volumetric shrinkage in agricultural products. The models were analyzed using the coefficient of determination, chi-square, mean relative error, mean estimated error, and residual distribution. Geometric diameter data were subjected to regression analysis by adopting a 1% level of significance. It was concluded that moisture content and drying temperature influence volumetric shrinkage in Jatropha seeds, a phenomenon satisfactorily described by the Polynomial equation, where the geometric diameter linearly decreased with a reduction of the moisture content, regardless of the drying conditions. |
id |
UEM-5_b7d133c03e47e228b0349304fa214c22 |
---|---|
oai_identifier_str |
oai:periodicos.uem.br/ojs:article/14402 |
network_acronym_str |
UEM-5 |
network_name_str |
Acta Scientiarum. Agronomy (Online) |
repository_id_str |
|
spelling |
Determination of the volumetric shrinkage in jatropha seeds during drying - doi: 10.4025/actasciagron.v34i3.14402mathematical modelsmoisture contentPolynomial modelThe objective of this study was to determine the geometric diameter of volumetric shrinkage in Jatropha seeds subjected to drying under six air conditions and to fit different mathematical models to the experimental values. Seeds with an approximate initial moisture content of 0.61 kgw kgdm-1 (kilogram of water per kilogram of dry matter) were dried in a convection oven at temperatures of 36, 45, 60, 75, 90, and 105°C until they reached a moisture content of 0.11 ± 0.006 kgw kgdm-1. The experimental data were fitted to five mathematical models used to represent volumetric shrinkage in agricultural products. The models were analyzed using the coefficient of determination, chi-square, mean relative error, mean estimated error, and residual distribution. Geometric diameter data were subjected to regression analysis by adopting a 1% level of significance. It was concluded that moisture content and drying temperature influence volumetric shrinkage in Jatropha seeds, a phenomenon satisfactorily described by the Polynomial equation, where the geometric diameter linearly decreased with a reduction of the moisture content, regardless of the drying conditions.Universidade Estadual de Maringá2011-12-19info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1440210.4025/actasciagron.v34i3.14402Acta Scientiarum. Agronomy; Vol 34 No 3 (2012); 231-238Acta Scientiarum. Agronomy; v. 34 n. 3 (2012); 231-2381807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14402/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14402/pdf_1http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14402/751375141405Siqueira, Valdiney CambuyResende, OsvaldoChaves, Tarcísio Honórioinfo:eu-repo/semantics/openAccess2022-11-23T18:38:31Zoai:periodicos.uem.br/ojs:article/14402Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:38:31Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Determination of the volumetric shrinkage in jatropha seeds during drying - doi: 10.4025/actasciagron.v34i3.14402 |
title |
Determination of the volumetric shrinkage in jatropha seeds during drying - doi: 10.4025/actasciagron.v34i3.14402 |
spellingShingle |
Determination of the volumetric shrinkage in jatropha seeds during drying - doi: 10.4025/actasciagron.v34i3.14402 Siqueira, Valdiney Cambuy mathematical models moisture content Polynomial model |
title_short |
Determination of the volumetric shrinkage in jatropha seeds during drying - doi: 10.4025/actasciagron.v34i3.14402 |
title_full |
Determination of the volumetric shrinkage in jatropha seeds during drying - doi: 10.4025/actasciagron.v34i3.14402 |
title_fullStr |
Determination of the volumetric shrinkage in jatropha seeds during drying - doi: 10.4025/actasciagron.v34i3.14402 |
title_full_unstemmed |
Determination of the volumetric shrinkage in jatropha seeds during drying - doi: 10.4025/actasciagron.v34i3.14402 |
title_sort |
Determination of the volumetric shrinkage in jatropha seeds during drying - doi: 10.4025/actasciagron.v34i3.14402 |
author |
Siqueira, Valdiney Cambuy |
author_facet |
Siqueira, Valdiney Cambuy Resende, Osvaldo Chaves, Tarcísio Honório |
author_role |
author |
author2 |
Resende, Osvaldo Chaves, Tarcísio Honório |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Siqueira, Valdiney Cambuy Resende, Osvaldo Chaves, Tarcísio Honório |
dc.subject.por.fl_str_mv |
mathematical models moisture content Polynomial model |
topic |
mathematical models moisture content Polynomial model |
description |
The objective of this study was to determine the geometric diameter of volumetric shrinkage in Jatropha seeds subjected to drying under six air conditions and to fit different mathematical models to the experimental values. Seeds with an approximate initial moisture content of 0.61 kgw kgdm-1 (kilogram of water per kilogram of dry matter) were dried in a convection oven at temperatures of 36, 45, 60, 75, 90, and 105°C until they reached a moisture content of 0.11 ± 0.006 kgw kgdm-1. The experimental data were fitted to five mathematical models used to represent volumetric shrinkage in agricultural products. The models were analyzed using the coefficient of determination, chi-square, mean relative error, mean estimated error, and residual distribution. Geometric diameter data were subjected to regression analysis by adopting a 1% level of significance. It was concluded that moisture content and drying temperature influence volumetric shrinkage in Jatropha seeds, a phenomenon satisfactorily described by the Polynomial equation, where the geometric diameter linearly decreased with a reduction of the moisture content, regardless of the drying conditions. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-12-19 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14402 10.4025/actasciagron.v34i3.14402 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14402 |
identifier_str_mv |
10.4025/actasciagron.v34i3.14402 |
dc.language.iso.fl_str_mv |
por eng |
language |
por eng |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14402/pdf http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14402/pdf_1 http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14402/751375141405 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 34 No 3 (2012); 231-238 Acta Scientiarum. Agronomy; v. 34 n. 3 (2012); 231-238 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
_version_ |
1799305908268826624 |