PRETREATMENT IN THE CONSERVATION OF BLACKBERRY (<I>Rubus glaucus</I>) AND UCHUVA (<I>Physalis peruviana</I> L.) WITH OSMOTIC DEHYDRATION

This study is performed on blackberry and uchuva pieces of hemispheric geometry undergoing osmotic dehydration in sucrose solutions of 25, 35, 45, 55 and 65°Brix, at room temperature. These processes are carried out at atmospheric pressure with or without a vacuum system. The determination of the ki...

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Main Authors: Germán A. GIRALDO G., Alba L. DUQUE C., Clara M. MEJÍA D.
Format: Article
Language:English
Published: Universidad de Antioquia 2009-02-01
Series:Vitae
Subjects:
Online Access:https://revistas.udea.edu.co/index.php/vitae/article/view/474
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author Germán A. GIRALDO G.
Alba L. DUQUE C.
Clara M. MEJÍA D.
author_facet Germán A. GIRALDO G.
Alba L. DUQUE C.
Clara M. MEJÍA D.
author_sort Germán A. GIRALDO G.
collection DOAJ
description This study is performed on blackberry and uchuva pieces of hemispheric geometry undergoing osmotic dehydration in sucrose solutions of 25, 35, 45, 55 and 65°Brix, at room temperature. These processes are carried out at atmospheric pressure with or without a vacuum system. The determination of the kinetics is done in short times (300 min) while the equilibrium needs large times (720 h) to be determined. The sugar gain, the water loss and the mass and volume variation of the samples are analyzed in both cases. The dehydration kinetics of the blackberry shows the best results during the treatment with sucrose solution of 65°Brix under vacuum conditions, reaching its equilibrium in a time between 72 and 144 h On the other hand, the uchuva presents a dehydration kinetics with a good response for sucrose solutions of 65 and 55°Brix under atmospheric pressure, and an equilibrium time of 72 h.
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spelling doaj.art-999612516da5423b805e8e2e75850e4c2022-12-21T23:27:11ZengUniversidad de AntioquiaVitae0121-40042145-26602009-02-01121PRETREATMENT IN THE CONSERVATION OF BLACKBERRY (<I>Rubus glaucus</I>) AND UCHUVA (<I>Physalis peruviana</I> L.) WITH OSMOTIC DEHYDRATIONGermán A. GIRALDO G.Alba L. DUQUE C.Clara M. MEJÍA D.This study is performed on blackberry and uchuva pieces of hemispheric geometry undergoing osmotic dehydration in sucrose solutions of 25, 35, 45, 55 and 65°Brix, at room temperature. These processes are carried out at atmospheric pressure with or without a vacuum system. The determination of the kinetics is done in short times (300 min) while the equilibrium needs large times (720 h) to be determined. The sugar gain, the water loss and the mass and volume variation of the samples are analyzed in both cases. The dehydration kinetics of the blackberry shows the best results during the treatment with sucrose solution of 65°Brix under vacuum conditions, reaching its equilibrium in a time between 72 and 144 h On the other hand, the uchuva presents a dehydration kinetics with a good response for sucrose solutions of 65 and 55°Brix under atmospheric pressure, and an equilibrium time of 72 h.https://revistas.udea.edu.co/index.php/vitae/article/view/474fruitkinetics of dehydrationequilibrium.
spellingShingle Germán A. GIRALDO G.
Alba L. DUQUE C.
Clara M. MEJÍA D.
PRETREATMENT IN THE CONSERVATION OF BLACKBERRY (<I>Rubus glaucus</I>) AND UCHUVA (<I>Physalis peruviana</I> L.) WITH OSMOTIC DEHYDRATION
Vitae
fruit
kinetics of dehydration
equilibrium.
title PRETREATMENT IN THE CONSERVATION OF BLACKBERRY (<I>Rubus glaucus</I>) AND UCHUVA (<I>Physalis peruviana</I> L.) WITH OSMOTIC DEHYDRATION
title_full PRETREATMENT IN THE CONSERVATION OF BLACKBERRY (<I>Rubus glaucus</I>) AND UCHUVA (<I>Physalis peruviana</I> L.) WITH OSMOTIC DEHYDRATION
title_fullStr PRETREATMENT IN THE CONSERVATION OF BLACKBERRY (<I>Rubus glaucus</I>) AND UCHUVA (<I>Physalis peruviana</I> L.) WITH OSMOTIC DEHYDRATION
title_full_unstemmed PRETREATMENT IN THE CONSERVATION OF BLACKBERRY (<I>Rubus glaucus</I>) AND UCHUVA (<I>Physalis peruviana</I> L.) WITH OSMOTIC DEHYDRATION
title_short PRETREATMENT IN THE CONSERVATION OF BLACKBERRY (<I>Rubus glaucus</I>) AND UCHUVA (<I>Physalis peruviana</I> L.) WITH OSMOTIC DEHYDRATION
title_sort pretreatment in the conservation of blackberry i rubus glaucus i and uchuva i physalis peruviana i l with osmotic dehydration
topic fruit
kinetics of dehydration
equilibrium.
url https://revistas.udea.edu.co/index.php/vitae/article/view/474
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