Moisture adsorption isotherms in yellow pitahaya (selenicereusmegalanthus)
Moisture adsorption isotherms for yellow pitahaya fruits were studied at 15, 25, and 35 °C using the gravimetric method for a0.111-0.901 water activity range. Experimental values were adjusted by using the GAB, BET, Henderson, Smith, Caurie, and Peleg models.The isosteric heat of adsorption (Qst) wa...
- Autores:
-
Ayala Aponte, Alfredo Adolfo
Serna Cock, Liliana
Rodriguez de la Pava, Gloria
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2011
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/40445
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/40445
http://bdigital.unal.edu.co/30542/
- Palabra clave:
- Yellow pitahaya
adsorption isotherms
isosteric heat of adsorption
- 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_abf2Ayala Aponte, Alfredo Adolfoaef439ba-2efc-4fdd-9166-e553a885db21300Serna Cock, Lilianac532fddf-5941-4083-9f3a-799d48341bd0300Rodriguez de la Pava, Gloria556ad2d1-3319-40b5-a131-d3d34c986ada3002019-06-28T09:33:47Z2019-06-28T09:33:47Z2011https://repositorio.unal.edu.co/handle/unal/40445http://bdigital.unal.edu.co/30542/Moisture adsorption isotherms for yellow pitahaya fruits were studied at 15, 25, and 35 °C using the gravimetric method for a0.111-0.901 water activity range. Experimental values were adjusted by using the GAB, BET, Henderson, Smith, Caurie, and Peleg models.The isosteric heat of adsorption (Qst) was determined using the Clausius-Clapeyron equation. The results showed that yellow pitahaya fruitsexhibit type III adsorption isotherms and that the equilibrium moisture content (EMC) is temperature-dependent. For the same water activityvalue, the EMC decreased when temperature increased. The GAB model presented the best fitto the experimental values. The Qst droppedfrom 57.154 to 45.79 kJ/mol when the EMC increased from 0.05 to 0.40 g water/g dry matter, respectively. These results are important forestablishing the best storage conditions for dehydrated pitahaya fruits as well as for shelf-life prediction and the design of packaging materials.application/pdfspaUniversidad Nacional de Colombia Sede Medellínhttp://revistas.unal.edu.co/index.php/dyna/article/view/29382Universidad Nacional de Colombia Revistas electrónicas UN DynaDynaDyna; Vol. 78, núm. 170 (2011); 7-14 DYNA; Vol. 78, núm. 170 (2011); 7-14 2346-2183 0012-7353Ayala Aponte, Alfredo Adolfo and Serna Cock, Liliana and Rodriguez de la Pava, Gloria (2011) Moisture adsorption isotherms in yellow pitahaya (selenicereusmegalanthus). Dyna; Vol. 78, núm. 170 (2011); 7-14 DYNA; Vol. 78, núm. 170 (2011); 7-14 2346-2183 0012-7353 .Moisture adsorption isotherms in yellow pitahaya (selenicereusmegalanthus)Artículo 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/ARTYellow pitahayaadsorption isothermsisosteric heat of adsorptionORIGINAL29382-105919-1-PB.pdfapplication/pdf613411https://repositorio.unal.edu.co/bitstream/unal/40445/1/29382-105919-1-PB.pdfaa3d3ec5547aa85465cbd305fe3c0756MD51THUMBNAIL29382-105919-1-PB.pdf.jpg29382-105919-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg8961https://repositorio.unal.edu.co/bitstream/unal/40445/2/29382-105919-1-PB.pdf.jpg4b64a053465a39c1c7e9be0d6f394a6fMD52unal/40445oai:repositorio.unal.edu.co:unal/404452023-01-28 23:05:06.376Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |
| dc.title.spa.fl_str_mv |
Moisture adsorption isotherms in yellow pitahaya (selenicereusmegalanthus) |
| title |
Moisture adsorption isotherms in yellow pitahaya (selenicereusmegalanthus) |
| spellingShingle |
Moisture adsorption isotherms in yellow pitahaya (selenicereusmegalanthus) Yellow pitahaya adsorption isotherms isosteric heat of adsorption |
| title_short |
Moisture adsorption isotherms in yellow pitahaya (selenicereusmegalanthus) |
| title_full |
Moisture adsorption isotherms in yellow pitahaya (selenicereusmegalanthus) |
| title_fullStr |
Moisture adsorption isotherms in yellow pitahaya (selenicereusmegalanthus) |
| title_full_unstemmed |
Moisture adsorption isotherms in yellow pitahaya (selenicereusmegalanthus) |
| title_sort |
Moisture adsorption isotherms in yellow pitahaya (selenicereusmegalanthus) |
| dc.creator.fl_str_mv |
Ayala Aponte, Alfredo Adolfo Serna Cock, Liliana Rodriguez de la Pava, Gloria |
| dc.contributor.author.spa.fl_str_mv |
Ayala Aponte, Alfredo Adolfo Serna Cock, Liliana Rodriguez de la Pava, Gloria |
| dc.subject.proposal.spa.fl_str_mv |
Yellow pitahaya adsorption isotherms isosteric heat of adsorption |
| topic |
Yellow pitahaya adsorption isotherms isosteric heat of adsorption |
| description |
Moisture adsorption isotherms for yellow pitahaya fruits were studied at 15, 25, and 35 °C using the gravimetric method for a0.111-0.901 water activity range. Experimental values were adjusted by using the GAB, BET, Henderson, Smith, Caurie, and Peleg models.The isosteric heat of adsorption (Qst) was determined using the Clausius-Clapeyron equation. The results showed that yellow pitahaya fruitsexhibit type III adsorption isotherms and that the equilibrium moisture content (EMC) is temperature-dependent. For the same water activityvalue, the EMC decreased when temperature increased. The GAB model presented the best fitto the experimental values. The Qst droppedfrom 57.154 to 45.79 kJ/mol when the EMC increased from 0.05 to 0.40 g water/g dry matter, respectively. These results are important forestablishing the best storage conditions for dehydrated pitahaya fruits as well as for shelf-life prediction and the design of packaging materials. |
| publishDate |
2011 |
| dc.date.issued.spa.fl_str_mv |
2011 |
| dc.date.accessioned.spa.fl_str_mv |
2019-06-28T09:33:47Z |
| dc.date.available.spa.fl_str_mv |
2019-06-28T09:33:47Z |
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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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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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https://repositorio.unal.edu.co/handle/unal/40445 |
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http://bdigital.unal.edu.co/30542/ |
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https://repositorio.unal.edu.co/handle/unal/40445 http://bdigital.unal.edu.co/30542/ |
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spa |
| language |
spa |
| dc.relation.spa.fl_str_mv |
http://revistas.unal.edu.co/index.php/dyna/article/view/29382 |
| dc.relation.ispartof.spa.fl_str_mv |
Universidad Nacional de Colombia Revistas electrónicas UN Dyna Dyna |
| dc.relation.ispartofseries.none.fl_str_mv |
Dyna; Vol. 78, núm. 170 (2011); 7-14 DYNA; Vol. 78, núm. 170 (2011); 7-14 2346-2183 0012-7353 |
| dc.relation.references.spa.fl_str_mv |
Ayala Aponte, Alfredo Adolfo and Serna Cock, Liliana and Rodriguez de la Pava, Gloria (2011) Moisture adsorption isotherms in yellow pitahaya (selenicereusmegalanthus). Dyna; Vol. 78, núm. 170 (2011); 7-14 DYNA; Vol. 78, núm. 170 (2011); 7-14 2346-2183 0012-7353 . |
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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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Universidad Nacional de Colombia Sede Medellín |
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