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Estudio de la cinética de osmodeshidratación aplicando vacío en aguaymanto (Physalis peruviana L.)

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dc.contributor.advisorSaito Roncal, Zembe Alejandro
dc.contributor.authorChuquipoma Morales, José Daniel
dc.date.accessioned2019-04-08T22:08:53Z
dc.date.available2019-04-08T22:08:53Z
dc.date.issued2018-10-25
dc.description.abstractWe studied the effect of temperature, osmotic concentration, acidity and vacuum pressure during the osmotic dehydration of Aguaymanto (Physalis peruviana L.). A syrup/fruit ratio of 4:1 was used during 180 minutes of the process making readings every 15 minutes. The variables studied significantly influenced moisture, water activity and b*. However, the soluble solids by effect of temperature, osmotic concentration and acidity; pH by effect of temperature and osmotic concentration; Acidity index by effect of temperature and acidity; L* by temperature and osmotic concentration; a* by effect of osmotic concentration. Three mathematical models were compared to describe the kinetics of water loss and the gain of solids at different temperatures (40, 50 and 60 °C), osmotic concentration (30, 40 and 50 °Brix), acidity (0.05, 0.075 and 0.1% citric acid) and vacuum pressure (200, 300 and 400 mmHg). Two empirical models were adjusted (Azuara and Peleg) and a phenomenological model from the solution of the second law of Fick. The results indicated that the model of Peleg adjusted better than the empirical model of Azuara and that to a lesser degree the phenomenological model of Fick, corroborated with the goodness of adjustment of the relative error mean percentage (ERM %) and the coefficient determination (R2). The highest water loss of 17.97 ± 2.23 % and the highest solid gain of 42 ± 3.06 °Brix were achieved under the following conditions; Temperature 60 °C, osmotic concentration 50 °Brix, acidity 0.075% and pressure 200 mmHg.en_ES
dc.description.escuelaEscuela Profesional de Ingeniería de Alimentos
dc.description.lineadeinvestigacionIngeniería de Alimentosen_ES
dc.description.sedeLIMAen_ES
dc.description.uriTesisen_ES
dc.formatapplication/pdfen_ES
dc.identifier.urihttp://repositorio.upeu.edu.pe/handle/20.500.12840/1725
dc.language.isospa
dc.publisherUniversidad Peruana Uniónen_ES
dc.publisher.countryPE
dc.rightsinfo:eu-repo/semantics/openAccessen_ES
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.sourceUniversidad Peruana Uniónen_ES
dc.sourceRepositorio Institucional - UPEUen_ES
dc.subjectAguaymantoen_ES
dc.subjectKinetic modelsen_ES
dc.subjectOsmotic dehydrationen_ES
dc.subjectWater loss and solids gainen_ES
dc.subject.ocdehttps://purl.org/pe-repo/ocde/ford#2.11.01
dc.titleEstudio de la cinética de osmodeshidratación aplicando vacío en aguaymanto (Physalis peruviana L.)en_ES
dc.typeinfo:eu-repo/semantics/bachelorThesisen_ES
thesis.degree.disciplineIngeniería de Alimentosen_ES
thesis.degree.grantorUniversidad Peruana Unión. Facultad de Ingeniería y Arquitecturaen_ES
thesis.degree.levelTítulo Profesionalen_ES
thesis.degree.nameIngeniero de Alimentosen_ES

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