Diffusion of bound water in starchy materials: Application to drying

A model for isothermal bound water diffusion in grains and other starchy materials was derived. Assuming that spreading pressure gradient is the driving force for diffusion, an analytical expression for the variation of diffusion coefficient with moisture content was derived. When applied to predict...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Aguerre, Roberto Jorge
Publicado:	2004
Materias:	Diffusion in starches Grain drying Moisture diffusivity Sorption Variable diffusivity Computer simulation Diffusion Drying Kinetic theory Mathematical models Moisture Starch Grain (agricultural product)
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02608774_v64_n3_p389_Aguerre http://hdl.handle.net/20.500.12110/paper_02608774_v64_n3_p389_Aguerre
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_02608774_v64_n3_p389_Aguerre
record_format	dspace
spelling	paper:paper_02608774_v64_n3_p389_Aguerre2023-06-08T15:22:33Z Diffusion of bound water in starchy materials: Application to drying Aguerre, Roberto Jorge Diffusion in starches Grain drying Moisture diffusivity Sorption Variable diffusivity Computer simulation Diffusion Drying Kinetic theory Mathematical models Moisture Sorption Starch Diffusion in starches Grain drying Moisture diffusivity Variable diffusivity Grain (agricultural product) A model for isothermal bound water diffusion in grains and other starchy materials was derived. Assuming that spreading pressure gradient is the driving force for diffusion, an analytical expression for the variation of diffusion coefficient with moisture content was derived. When applied to predict the variation of the diffusion coefficient with moisture for some cereal grains and starches, the curves show a maximum for moisture contents about 0.10-0.15 kg water per kg dry solid. The expression for moisture variation of the diffusion coefficient was used to simulate the drying behavior of cereal grains for known values of initial and equilibrium moisture contents with satisfactory results. © 2003 Published by Elsevier Ltd. Fil:Aguerre, R.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2004 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02608774_v64_n3_p389_Aguerre http://hdl.handle.net/20.500.12110/paper_02608774_v64_n3_p389_Aguerre
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Diffusion in starches Grain drying Moisture diffusivity Sorption Variable diffusivity Computer simulation Diffusion Drying Kinetic theory Mathematical models Moisture Sorption Starch Diffusion in starches Grain drying Moisture diffusivity Variable diffusivity Grain (agricultural product)
spellingShingle	Diffusion in starches Grain drying Moisture diffusivity Sorption Variable diffusivity Computer simulation Diffusion Drying Kinetic theory Mathematical models Moisture Sorption Starch Diffusion in starches Grain drying Moisture diffusivity Variable diffusivity Grain (agricultural product) Aguerre, Roberto Jorge Diffusion of bound water in starchy materials: Application to drying
topic_facet	Diffusion in starches Grain drying Moisture diffusivity Sorption Variable diffusivity Computer simulation Diffusion Drying Kinetic theory Mathematical models Moisture Sorption Starch Diffusion in starches Grain drying Moisture diffusivity Variable diffusivity Grain (agricultural product)
description	A model for isothermal bound water diffusion in grains and other starchy materials was derived. Assuming that spreading pressure gradient is the driving force for diffusion, an analytical expression for the variation of diffusion coefficient with moisture content was derived. When applied to predict the variation of the diffusion coefficient with moisture for some cereal grains and starches, the curves show a maximum for moisture contents about 0.10-0.15 kg water per kg dry solid. The expression for moisture variation of the diffusion coefficient was used to simulate the drying behavior of cereal grains for known values of initial and equilibrium moisture contents with satisfactory results. © 2003 Published by Elsevier Ltd.
author	Aguerre, Roberto Jorge
author_facet	Aguerre, Roberto Jorge
author_sort	Aguerre, Roberto Jorge
title	Diffusion of bound water in starchy materials: Application to drying
title_short	Diffusion of bound water in starchy materials: Application to drying
title_full	Diffusion of bound water in starchy materials: Application to drying
title_fullStr	Diffusion of bound water in starchy materials: Application to drying
title_full_unstemmed	Diffusion of bound water in starchy materials: Application to drying
title_sort	diffusion of bound water in starchy materials: application to drying
publishDate	2004
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02608774_v64_n3_p389_Aguerre http://hdl.handle.net/20.500.12110/paper_02608774_v64_n3_p389_Aguerre
work_keys_str_mv	AT aguerrerobertojorge diffusionofboundwaterinstarchymaterialsapplicationtodrying
_version_	1768545644742443008

Diffusion of bound water in starchy materials: Application to drying

Ejemplares similares