The effect of encapsulants on the heat of sorption in vacuum-dried caja powder
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
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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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 |
|
_version_ |
1808129094385139712 |