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...
- 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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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 |
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Artículo de revista |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
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info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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http://purl.org/coar/resource_type/c_6501 |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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Text |
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http://purl.org/redcol/resource_type/ART |
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http://purl.org/coar/resource_type/c_6501 |
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publishedVersion |
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ISSN: 2248-7026 |
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https://repositorio.unal.edu.co/handle/unal/58586 |
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http://bdigital.unal.edu.co/55370/ |
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ISSN: 2248-7026 |
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https://repositorio.unal.edu.co/handle/unal/58586 http://bdigital.unal.edu.co/55370/ |
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spa |
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spa |
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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 |
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Derechos reservados - Universidad Nacional de Colombia |
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http://purl.org/coar/access_right/c_abf2 |
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Atribución-NoComercial 4.0 Internacional |
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http://creativecommons.org/licenses/by-nc/4.0/ |
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info:eu-repo/semantics/openAccess |
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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 |
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