Thermal and thermodynamic characterization of a dye powder from liquid turmeric extracts by spray drying

This study aimed to evaluate the thermodynamic properties of sorption isotherms and glass transition temperature (Tg) and the thermal properties of a dye powder obtained from turmeric extracts using spray drying. The sorption isotherms were evaluated at 15, 25 and 35 ºC using the dynamic gravimetric...

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Autores:
Coronel Delgado, Aura Yazmin
Ciro Velásquez, Héctor José
Restrepo Molina, Diego Alonso
Tipo de recurso:
Article of journal
Fecha de publicación:
2016
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/58586
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/58586
http://bdigital.unal.edu.co/55370/
Palabra clave:
57 Ciencias de la vida; Biología / Life sciences; biology
58 Plantas / Plants
sorption isotherms
turmeric powder
glass transition temperature
TGA analysis
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
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spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Coronel Delgado, Aura Yazmina887cef8-dcdd-4ac3-81ed-bbba77fa9d0f300Ciro Velásquez, Héctor José67cd7e0b-c8a1-4ae1-b6e9-db148326aa86300Restrepo Molina, Diego Alonso9a69151a-467c-485b-bb00-810d7885ed723002019-07-02T14:24:46Z2019-07-02T14:24:46Z2016-01-01ISSN: 2248-7026https://repositorio.unal.edu.co/handle/unal/58586http://bdigital.unal.edu.co/55370/This study aimed to evaluate the thermodynamic properties of sorption isotherms and glass transition temperature (Tg) and the thermal properties of a dye powder obtained from turmeric extracts using spray drying. The sorption isotherms were evaluated at 15, 25 and 35 ºC using the dynamic gravimetric method, wherein the isotherm data of the experiment were fit to GAB and BET models. Likewise, the Tg was measured using differential scanning calorimetry (DSC). Thermogravimetric analysis (TGA) was used to determine the mass loss, and the thermal properties (heat capacity, diffusivity and thermal conductivity) were determined using transient flow method. The results demonstrated that the GAB model best fit the adsorption data. The DSC analysis presented a glass transition temperature of 65.35 ºC and a loss of volatiles at 178.07 ºC. The TGA analysis indicated a considerable mass loss starting at 193 ºC, resulting in degradation of the product. The thermal properties demonstrated a heat capacity of 2.45 J/g ºC, a thermal conductivity of 0.164 ±0.001 W/mK and a thermal diffusivity of 8.7x10-8 ± 0.000 m2/sapplication/pdfspaUniversidad Nacional de Colombiahttp://www.revistas.unal.edu.co/index.php/refame/article/view/54752Universidad Nacional de Colombia Revistas electrónicas UN Revista Facultad Nacional de Agronomía MedellínRevista Facultad Nacional de Agronomía MedellínCoronel Delgado, Aura Yazmin and Ciro Velásquez, Héctor José and Restrepo Molina, Diego Alonso (2016) Thermal and thermodynamic characterization of a dye powder from liquid turmeric extracts by spray drying. Revista Facultad Nacional de Agronomía, 69 (1). pp. 7845-7854. ISSN 2248-702657 Ciencias de la vida; Biología / Life sciences; biology58 Plantas / Plantssorption isothermsturmeric powderglass transition temperatureTGA analysisThermal and thermodynamic characterization of a dye powder from liquid turmeric extracts by spray dryingArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTORIGINALrfna.v69n1.54752.pdfapplication/pdf392350https://repositorio.unal.edu.co/bitstream/unal/58586/1/rfna.v69n1.54752.pdf3be5cd4ba6c355586ed1eb06491b50d9MD51THUMBNAILrfna.v69n1.54752.pdf.jpgrfna.v69n1.54752.pdf.jpgGenerated Thumbnailimage/jpeg7709https://repositorio.unal.edu.co/bitstream/unal/58586/2/rfna.v69n1.54752.pdf.jpgb578fbc9183e6b3b723caccfd49595f5MD52unal/58586oai:repositorio.unal.edu.co:unal/585862024-04-02 23:11:30.92Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co
dc.title.spa.fl_str_mv Thermal and thermodynamic characterization of a dye powder from liquid turmeric extracts by spray drying
title Thermal and thermodynamic characterization of a dye powder from liquid turmeric extracts by spray drying
spellingShingle Thermal and thermodynamic characterization of a dye powder from liquid turmeric extracts by spray drying
57 Ciencias de la vida; Biología / Life sciences; biology
58 Plantas / Plants
sorption isotherms
turmeric powder
glass transition temperature
TGA analysis
title_short Thermal and thermodynamic characterization of a dye powder from liquid turmeric extracts by spray drying
title_full Thermal and thermodynamic characterization of a dye powder from liquid turmeric extracts by spray drying
title_fullStr Thermal and thermodynamic characterization of a dye powder from liquid turmeric extracts by spray drying
title_full_unstemmed Thermal and thermodynamic characterization of a dye powder from liquid turmeric extracts by spray drying
title_sort Thermal and thermodynamic characterization of a dye powder from liquid turmeric extracts by spray drying
dc.creator.fl_str_mv Coronel Delgado, Aura Yazmin
Ciro Velásquez, Héctor José
Restrepo Molina, Diego Alonso
dc.contributor.author.spa.fl_str_mv Coronel Delgado, Aura Yazmin
Ciro Velásquez, Héctor José
Restrepo Molina, Diego Alonso
dc.subject.ddc.spa.fl_str_mv 57 Ciencias de la vida; Biología / Life sciences; biology
58 Plantas / Plants
topic 57 Ciencias de la vida; Biología / Life sciences; biology
58 Plantas / Plants
sorption isotherms
turmeric powder
glass transition temperature
TGA analysis
dc.subject.proposal.spa.fl_str_mv sorption isotherms
turmeric powder
glass transition temperature
TGA analysis
description This study aimed to evaluate the thermodynamic properties of sorption isotherms and glass transition temperature (Tg) and the thermal properties of a dye powder obtained from turmeric extracts using spray drying. The sorption isotherms were evaluated at 15, 25 and 35 ºC using the dynamic gravimetric method, wherein the isotherm data of the experiment were fit to GAB and BET models. Likewise, the Tg was measured using differential scanning calorimetry (DSC). Thermogravimetric analysis (TGA) was used to determine the mass loss, and the thermal properties (heat capacity, diffusivity and thermal conductivity) were determined using transient flow method. The results demonstrated that the GAB model best fit the adsorption data. The DSC analysis presented a glass transition temperature of 65.35 ºC and a loss of volatiles at 178.07 ºC. The TGA analysis indicated a considerable mass loss starting at 193 ºC, resulting in degradation of the product. The thermal properties demonstrated a heat capacity of 2.45 J/g ºC, a thermal conductivity of 0.164 ±0.001 W/mK and a thermal diffusivity of 8.7x10-8 ± 0.000 m2/s
publishDate 2016
dc.date.issued.spa.fl_str_mv 2016-01-01
dc.date.accessioned.spa.fl_str_mv 2019-07-02T14:24:46Z
dc.date.available.spa.fl_str_mv 2019-07-02T14:24:46Z
dc.type.spa.fl_str_mv Artículo de revista
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dc.identifier.issn.spa.fl_str_mv ISSN: 2248-7026
dc.identifier.uri.none.fl_str_mv https://repositorio.unal.edu.co/handle/unal/58586
dc.identifier.eprints.spa.fl_str_mv http://bdigital.unal.edu.co/55370/
identifier_str_mv ISSN: 2248-7026
url https://repositorio.unal.edu.co/handle/unal/58586
http://bdigital.unal.edu.co/55370/
dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.spa.fl_str_mv http://www.revistas.unal.edu.co/index.php/refame/article/view/54752
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN Revista Facultad Nacional de Agronomía Medellín
Revista Facultad Nacional de Agronomía Medellín
dc.relation.references.spa.fl_str_mv Coronel Delgado, Aura Yazmin and Ciro Velásquez, Héctor José and Restrepo Molina, Diego Alonso (2016) Thermal and thermodynamic characterization of a dye powder from liquid turmeric extracts by spray drying. Revista Facultad Nacional de Agronomía, 69 (1). pp. 7845-7854. ISSN 2248-7026
dc.rights.spa.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.license.spa.fl_str_mv Atribución-NoComercial 4.0 Internacional
dc.rights.uri.spa.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0/
dc.rights.accessrights.spa.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
Derechos reservados - Universidad Nacional de Colombia
http://creativecommons.org/licenses/by-nc/4.0/
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
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dc.publisher.spa.fl_str_mv Universidad Nacional de Colombia
institution Universidad Nacional de Colombia
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