The effect of encapsulants on the heat of sorption in vacuum-dried caja powder

Detalhes bibliográficos
Autor(a) principal: Silva Oliveira Gomes, Maron Stanley
Data de Publicação: 2019
Outros Autores: Polachini, Tiago Carregari [UNESP], Lopes Filho, Jose Francisco [UNESP], Romero, Javier Telis [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.5935/1806-6690.20190069
http://hdl.handle.net/11449/196198
Resumo: Equilibrium moisture data from the powdered pulp of Spondias mombin, L., both with and without additives - 58% maltodextrin (MD) or 58% gum arabic (GA) - were determined at 20, 30, 40 and 50 degrees C, using the static gravimetric method for a water activity range of 0.06 to 0.90. The resulting isotherms were sigmoidal and typical Type III, with the Guggenheim-Anderson-de-Boer model (GAB) adjusted to the experimental data for equilibrium moisture vs water activity. The addition of additives was shown to affect the isotherms in such a way that, for the same water activity, samples of CP+GA and CP+MD showed a lower equilibrium moisture content and were not affected by the variations in temperature. The isosteric heat of sorption for the caja powder with additives was greater (less negative) than that of the caja powder with no additives, suggesting that polar sites in the product without the addition of GA or MD are more active. An empirical exponential relationship can describe the dependence of the heat of sorption as a function of the moisture content of the material.
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spelling The effect of encapsulants on the heat of sorption in vacuum-dried caja powderIsothermsMaltodextrinGum arabic Water activityEquilibrium moisture data from the powdered pulp of Spondias mombin, L., both with and without additives - 58% maltodextrin (MD) or 58% gum arabic (GA) - were determined at 20, 30, 40 and 50 degrees C, using the static gravimetric method for a water activity range of 0.06 to 0.90. The resulting isotherms were sigmoidal and typical Type III, with the Guggenheim-Anderson-de-Boer model (GAB) adjusted to the experimental data for equilibrium moisture vs water activity. The addition of additives was shown to affect the isotherms in such a way that, for the same water activity, samples of CP+GA and CP+MD showed a lower equilibrium moisture content and were not affected by the variations in temperature. The isosteric heat of sorption for the caja powder with additives was greater (less negative) than that of the caja powder with no additives, suggesting that polar sites in the product without the addition of GA or MD are more active. An empirical exponential relationship can describe the dependence of the heat of sorption as a function of the moisture content of the material.Fundacao de Amparo a Pesquisa e ao Desenvolvimento Tecnologico do Estado do MaranhaoInst Fed Educ Ciencia & Tecnol Maranhao, Campus Bacabal, BR-65700000 Bacabal, MA, BrazilUniv Estadual Paulista, Dept Engn & Tecnol Alimentos, Sao Jose Do Rio Preto, SP, BrazilUniv Estadual Paulista, Dept Engn & Tecnol Alimentos, Sao Jose Do Rio Preto, SP, BrazilUniv Federal Ceara, Dept GeolInst Fed Educ Ciencia & Tecnol MaranhaoUniversidade Estadual Paulista (Unesp)Silva Oliveira Gomes, Maron StanleyPolachini, Tiago Carregari [UNESP]Lopes Filho, Jose Francisco [UNESP]Romero, Javier Telis [UNESP]2020-12-10T19:36:44Z2020-12-10T19:36:44Z2019-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article584-592application/pdfhttp://dx.doi.org/10.5935/1806-6690.20190069Revista Ciencia Agronomica. Fortaleza: Univ Federal Ceara, Dept Geol, v. 50, n. 4, p. 584-592, 2019.0045-6888http://hdl.handle.net/11449/19619810.5935/1806-6690.20190069S1806-66902019000400584WOS:000487580400009S1806-66902019000400584.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Ciencia Agronomicainfo:eu-repo/semantics/openAccess2023-12-06T06:15:36Zoai:repositorio.unesp.br:11449/196198Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:36:03.872650Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv The effect of encapsulants on the heat of sorption in vacuum-dried caja powder
title The effect of encapsulants on the heat of sorption in vacuum-dried caja powder
spellingShingle The effect of encapsulants on the heat of sorption in vacuum-dried caja powder
Silva Oliveira Gomes, Maron Stanley
Isotherms
Maltodextrin
Gum arabic Water activity
title_short The effect of encapsulants on the heat of sorption in vacuum-dried caja powder
title_full The effect of encapsulants on the heat of sorption in vacuum-dried caja powder
title_fullStr The effect of encapsulants on the heat of sorption in vacuum-dried caja powder
title_full_unstemmed The effect of encapsulants on the heat of sorption in vacuum-dried caja powder
title_sort The effect of encapsulants on the heat of sorption in vacuum-dried caja powder
author Silva Oliveira Gomes, Maron Stanley
author_facet Silva Oliveira Gomes, Maron Stanley
Polachini, Tiago Carregari [UNESP]
Lopes Filho, Jose Francisco [UNESP]
Romero, Javier Telis [UNESP]
author_role author
author2 Polachini, Tiago Carregari [UNESP]
Lopes Filho, Jose Francisco [UNESP]
Romero, Javier Telis [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Inst Fed Educ Ciencia & Tecnol Maranhao
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Silva Oliveira Gomes, Maron Stanley
Polachini, Tiago Carregari [UNESP]
Lopes Filho, Jose Francisco [UNESP]
Romero, Javier Telis [UNESP]
dc.subject.por.fl_str_mv Isotherms
Maltodextrin
Gum arabic Water activity
topic Isotherms
Maltodextrin
Gum arabic Water activity
description Equilibrium moisture data from the powdered pulp of Spondias mombin, L., both with and without additives - 58% maltodextrin (MD) or 58% gum arabic (GA) - were determined at 20, 30, 40 and 50 degrees C, using the static gravimetric method for a water activity range of 0.06 to 0.90. The resulting isotherms were sigmoidal and typical Type III, with the Guggenheim-Anderson-de-Boer model (GAB) adjusted to the experimental data for equilibrium moisture vs water activity. The addition of additives was shown to affect the isotherms in such a way that, for the same water activity, samples of CP+GA and CP+MD showed a lower equilibrium moisture content and were not affected by the variations in temperature. The isosteric heat of sorption for the caja powder with additives was greater (less negative) than that of the caja powder with no additives, suggesting that polar sites in the product without the addition of GA or MD are more active. An empirical exponential relationship can describe the dependence of the heat of sorption as a function of the moisture content of the material.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-01
2020-12-10T19:36:44Z
2020-12-10T19:36:44Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.5935/1806-6690.20190069
Revista Ciencia Agronomica. Fortaleza: Univ Federal Ceara, Dept Geol, v. 50, n. 4, p. 584-592, 2019.
0045-6888
http://hdl.handle.net/11449/196198
10.5935/1806-6690.20190069
S1806-66902019000400584
WOS:000487580400009
S1806-66902019000400584.pdf
url http://dx.doi.org/10.5935/1806-6690.20190069
http://hdl.handle.net/11449/196198
identifier_str_mv Revista Ciencia Agronomica. Fortaleza: Univ Federal Ceara, Dept Geol, v. 50, n. 4, p. 584-592, 2019.
0045-6888
10.5935/1806-6690.20190069
S1806-66902019000400584
WOS:000487580400009
S1806-66902019000400584.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Revista Ciencia Agronomica
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 584-592
application/pdf
dc.publisher.none.fl_str_mv Univ Federal Ceara, Dept Geol
publisher.none.fl_str_mv Univ Federal Ceara, Dept Geol
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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