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...
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todo:paper_02608774_v64_n3_p389_Aguerre2023-10-03T15:12:14Z Diffusion of bound water in starchy materials: Application to drying Aguerre, R.J. Suarez, C. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, R.J. Suarez, C. 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. |
format |
JOUR |
author |
Aguerre, R.J. Suarez, C. |
author_facet |
Aguerre, R.J. Suarez, C. |
author_sort |
Aguerre, R.J. |
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 |
url |
http://hdl.handle.net/20.500.12110/paper_02608774_v64_n3_p389_Aguerre |
work_keys_str_mv |
AT aguerrerj diffusionofboundwaterinstarchymaterialsapplicationtodrying AT suarezc diffusionofboundwaterinstarchymaterialsapplicationtodrying |
_version_ |
1782030038064955392 |