The use of a diffusional model in determining the permeability of corn pericarp

Fick's diffusional model was used to fit drying curves of corn kernel in which the endosperm and germ were modeled as a homogeneous sphere with the pericarp being part of the external mass transfer resistance. Drying curves of whole and dehulled kernels were determined at 50°C and 60°C together...

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Detalles Bibliográficos
Autores principales:	Tolaba, M.P., Suarez, C., Viollaz, P.E.
Formato:	JOUR
Materias:	Diffusion > Mathematical Models Drying > Mathematical Models Moisture Corn Kernels Corn Pericarp Permeability Determination Food Products
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_02608774_v12_n1_p53_Tolaba
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_02608774_v12_n1_p53_Tolaba
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spelling	todo:paper_02608774_v12_n1_p53_Tolaba2023-10-03T15:11:57Z The use of a diffusional model in determining the permeability of corn pericarp Tolaba, M.P. Suarez, C. Viollaz, P.E. Diffusion--Mathematical Models Drying--Mathematical Models Moisture Corn Kernels Corn Pericarp Permeability Determination Food Products Fick's diffusional model was used to fit drying curves of corn kernel in which the endosperm and germ were modeled as a homogeneous sphere with the pericarp being part of the external mass transfer resistance. Drying curves of whole and dehulled kernels were determined at 50°C and 60°C together with the equilibrium moisture contents at the respective temperatures. Diffusion coefficients for the corn kernel without pericarp and for the pericarp alone were determined by fitting the experimental drying curves to the diffusional model. It was found that moisture diffuses about eight times faster through the endosperm and germ than through the pericarp. The permeabilities of the pericarp at 50°C and 60°C were 1·8 × 10-7 and 1·6 × 10-7 g cm/cm2 atm s, respectively. © 1990. Fil:Tolaba, M.P. 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_v12_n1_p53_Tolaba
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--Mathematical Models Drying--Mathematical Models Moisture Corn Kernels Corn Pericarp Permeability Determination Food Products
spellingShingle	Diffusion--Mathematical Models Drying--Mathematical Models Moisture Corn Kernels Corn Pericarp Permeability Determination Food Products Tolaba, M.P. Suarez, C. Viollaz, P.E. The use of a diffusional model in determining the permeability of corn pericarp
topic_facet	Diffusion--Mathematical Models Drying--Mathematical Models Moisture Corn Kernels Corn Pericarp Permeability Determination Food Products
description	Fick's diffusional model was used to fit drying curves of corn kernel in which the endosperm and germ were modeled as a homogeneous sphere with the pericarp being part of the external mass transfer resistance. Drying curves of whole and dehulled kernels were determined at 50°C and 60°C together with the equilibrium moisture contents at the respective temperatures. Diffusion coefficients for the corn kernel without pericarp and for the pericarp alone were determined by fitting the experimental drying curves to the diffusional model. It was found that moisture diffuses about eight times faster through the endosperm and germ than through the pericarp. The permeabilities of the pericarp at 50°C and 60°C were 1·8 × 10-7 and 1·6 × 10-7 g cm/cm2 atm s, respectively. © 1990.
format	JOUR
author	Tolaba, M.P. Suarez, C. Viollaz, P.E.
author_facet	Tolaba, M.P. Suarez, C. Viollaz, P.E.
author_sort	Tolaba, M.P.
title	The use of a diffusional model in determining the permeability of corn pericarp
title_short	The use of a diffusional model in determining the permeability of corn pericarp
title_full	The use of a diffusional model in determining the permeability of corn pericarp
title_fullStr	The use of a diffusional model in determining the permeability of corn pericarp
title_full_unstemmed	The use of a diffusional model in determining the permeability of corn pericarp
title_sort	use of a diffusional model in determining the permeability of corn pericarp
url	http://hdl.handle.net/20.500.12110/paper_02608774_v12_n1_p53_Tolaba
work_keys_str_mv	AT tolabamp theuseofadiffusionalmodelindeterminingthepermeabilityofcornpericarp AT suarezc theuseofadiffusionalmodelindeterminingthepermeabilityofcornpericarp AT viollazpe theuseofadiffusionalmodelindeterminingthepermeabilityofcornpericarp AT tolabamp useofadiffusionalmodelindeterminingthepermeabilityofcornpericarp AT suarezc useofadiffusionalmodelindeterminingthepermeabilityofcornpericarp AT viollazpe useofadiffusionalmodelindeterminingthepermeabilityofcornpericarp
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The use of a diffusional model in determining the permeability of corn pericarp

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