Osmotic dehydration and convective drying of coconut slices: Experimental determination and description using one-dimensional diffusion model

Mass migrations in coconut slices during osmotic dehydration and drying are described using a diffusion model with boundary condition of the third kind. The osmotic dehydration experiment was performed at 35°Brix (water and sucrose) and 40 °C. The convective drying experiments were performed at 50,...

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Main Authors:	Wilton Pereira da Silva, Cleide Maria Diniz Pereira da Silva e Silva, Juarez Everton de Farias Aires, Aluizio Freire da Silva Junior
Format:	Article
Language:	English
Published:	Elsevier 2014-06-01
Series:	Journal of the Saudi Society of Agricultural Sciences
Subjects:	Analytical solution Convective boundary condition Osmotic dehydration kinetics Drying kinetics Optimization
Online Access:	http://www.sciencedirect.com/science/article/pii/S1658077X13000209

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spelling	doaj-7b8cca01883540b49a5ff53a883673422020-11-25T01:01:42ZengElsevierJournal of the Saudi Society of Agricultural Sciences1658-077X2014-06-0113216216810.1016/j.jssas.2013.05.002Osmotic dehydration and convective drying of coconut slices: Experimental determination and description using one-dimensional diffusion modelWilton Pereira da SilvaCleide Maria Diniz Pereira da Silva e SilvaJuarez Everton de Farias AiresAluizio Freire da Silva JuniorMass migrations in coconut slices during osmotic dehydration and drying are described using a diffusion model with boundary condition of the third kind. The osmotic dehydration experiment was performed at 35°Brix (water and sucrose) and 40 °C. The convective drying experiments were performed at 50, 60 and 70 °C. The one-dimensional solution of the diffusion equation for an infinite slab was coupled with an optimizer to determine the effective mass diffusivities D and convective mass transfer coefficients h of the five processes studied. The analyses of the obtained results indicate that there is a good agreement between each experimental dataset and the corresponding simulation using D and h determined by optimization.http://www.sciencedirect.com/science/article/pii/S1658077X13000209Analytical solutionConvective boundary conditionOsmotic dehydration kineticsDrying kineticsOptimization
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Wilton Pereira da Silva Cleide Maria Diniz Pereira da Silva e Silva Juarez Everton de Farias Aires Aluizio Freire da Silva Junior
spellingShingle	Wilton Pereira da Silva Cleide Maria Diniz Pereira da Silva e Silva Juarez Everton de Farias Aires Aluizio Freire da Silva Junior Osmotic dehydration and convective drying of coconut slices: Experimental determination and description using one-dimensional diffusion model Journal of the Saudi Society of Agricultural Sciences Analytical solution Convective boundary condition Osmotic dehydration kinetics Drying kinetics Optimization
author_facet	Wilton Pereira da Silva Cleide Maria Diniz Pereira da Silva e Silva Juarez Everton de Farias Aires Aluizio Freire da Silva Junior
author_sort	Wilton Pereira da Silva
title	Osmotic dehydration and convective drying of coconut slices: Experimental determination and description using one-dimensional diffusion model
title_short	Osmotic dehydration and convective drying of coconut slices: Experimental determination and description using one-dimensional diffusion model
title_full	Osmotic dehydration and convective drying of coconut slices: Experimental determination and description using one-dimensional diffusion model
title_fullStr	Osmotic dehydration and convective drying of coconut slices: Experimental determination and description using one-dimensional diffusion model
title_full_unstemmed	Osmotic dehydration and convective drying of coconut slices: Experimental determination and description using one-dimensional diffusion model
title_sort	osmotic dehydration and convective drying of coconut slices: experimental determination and description using one-dimensional diffusion model
publisher	Elsevier
series	Journal of the Saudi Society of Agricultural Sciences
issn	1658-077X
publishDate	2014-06-01
description	Mass migrations in coconut slices during osmotic dehydration and drying are described using a diffusion model with boundary condition of the third kind. The osmotic dehydration experiment was performed at 35°Brix (water and sucrose) and 40 °C. The convective drying experiments were performed at 50, 60 and 70 °C. The one-dimensional solution of the diffusion equation for an infinite slab was coupled with an optimizer to determine the effective mass diffusivities D and convective mass transfer coefficients h of the five processes studied. The analyses of the obtained results indicate that there is a good agreement between each experimental dataset and the corresponding simulation using D and h determined by optimization.
topic	Analytical solution Convective boundary condition Osmotic dehydration kinetics Drying kinetics Optimization
url	http://www.sciencedirect.com/science/article/pii/S1658077X13000209
work_keys_str_mv	AT wiltonpereiradasilva osmoticdehydrationandconvectivedryingofcoconutslicesexperimentaldeterminationanddescriptionusingonedimensionaldiffusionmodel AT cleidemariadinizpereiradasilvaesilva osmoticdehydrationandconvectivedryingofcoconutslicesexperimentaldeterminationanddescriptionusingonedimensionaldiffusionmodel AT juarezevertondefariasaires osmoticdehydrationandconvectivedryingofcoconutslicesexperimentaldeterminationanddescriptionusingonedimensionaldiffusionmodel AT aluiziofreiredasilvajunior osmoticdehydrationandconvectivedryingofcoconutslicesexperimentaldeterminationanddescriptionusingonedimensionaldiffusionmodel
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Osmotic dehydration and convective drying of coconut slices: Experimental determination and description using one-dimensional diffusion model

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