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
Autor principal: Tolaba, Marcela Patricia
Publicado: 1990
Materias:
Diffusion > Mathematical Models
Drying > Mathematical Models
Moisture
Corn Kernels
Corn Pericarp Permeability Determination
Food Products
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02608774_v12_n1_p53_Tolaba
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 paper:paper_02608774_v12_n1_p53_Tolaba
record_format dspace
spelling paper:paper_02608774_v12_n1_p53_Tolaba2023-06-08T15:22:19Z The use of a diffusional model in determining the permeability of corn pericarp Tolaba, Marcela Patricia 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. 1990 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02608774_v12_n1_p53_Tolaba 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, Marcela Patricia
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.
author Tolaba, Marcela Patricia
author_facet Tolaba, Marcela Patricia
author_sort Tolaba, Marcela Patricia
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
publishDate 1990
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02608774_v12_n1_p53_Tolaba
http://hdl.handle.net/20.500.12110/paper_02608774_v12_n1_p53_Tolaba
work_keys_str_mv AT tolabamarcelapatricia theuseofadiffusionalmodelindeterminingthepermeabilityofcornpericarp
AT tolabamarcelapatricia useofadiffusionalmodelindeterminingthepermeabilityofcornpericarp
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