Absorption Kinetics of Sulfur Dioxide in Flint Corn during Steeping

A mathematical model was proposed to simulate simultaneous sulfur dioxide absorption and reaction during corn steeping. The parameters of the model, the diffusion coefficient and the reaction rate constant, were determined. The reaction rate of sulfur dioxide in corn grain followed first-order kinet...

Descripción completa

Detalles Bibliográficos
Autores principales: Haros, Claudia Mónica, Aguerre, Roberto Jorge
Publicado: 2001
Materias:
Corn steeping; sulfur dioxide absorption; sulfur dioxide reaction
Arrhenius
Zea mays
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00236438_v34_n5_p293_Haros
http://hdl.handle.net/20.500.12110/paper_00236438_v34_n5_p293_Haros
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00236438_v34_n5_p293_Haros
record_format dspace
spelling paper:paper_00236438_v34_n5_p293_Haros2023-06-08T14:51:40Z Absorption Kinetics of Sulfur Dioxide in Flint Corn during Steeping Haros, Claudia Mónica Aguerre, Roberto Jorge Corn steeping; sulfur dioxide absorption; sulfur dioxide reaction Arrhenius Zea mays A mathematical model was proposed to simulate simultaneous sulfur dioxide absorption and reaction during corn steeping. The parameters of the model, the diffusion coefficient and the reaction rate constant, were determined. The reaction rate of sulfur dioxide in corn grain followed first-order kinetics, with rate constants in the range 1.49×10-7to 9.78×10-7s-1for steeping temperatures from 25 to 55 °C. The Arrhenius activation energy for sulfur dioxide loss was 60.5 kJ/mol. The fitting of the mathematical model to the absorption curves determined the diffusion coefficient of sulfur dioxide in corn kernels. These varied from 1.17×10-11to 5.18×10-11m2/s for the temperature range 25-55 °C. Temperature-dependent diffusion coefficients was shown to obey the Arrhenius equation with an activation energy of 39.8 kJ/mol. © 2001 Academic Press. Fil:Haros, C.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Aguerre, R.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00236438_v34_n5_p293_Haros http://hdl.handle.net/20.500.12110/paper_00236438_v34_n5_p293_Haros
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Corn steeping; sulfur dioxide absorption; sulfur dioxide reaction
Arrhenius
Zea mays
spellingShingle Corn steeping; sulfur dioxide absorption; sulfur dioxide reaction
Arrhenius
Zea mays
Haros, Claudia Mónica
Aguerre, Roberto Jorge
Absorption Kinetics of Sulfur Dioxide in Flint Corn during Steeping
topic_facet Corn steeping; sulfur dioxide absorption; sulfur dioxide reaction
Arrhenius
Zea mays
description A mathematical model was proposed to simulate simultaneous sulfur dioxide absorption and reaction during corn steeping. The parameters of the model, the diffusion coefficient and the reaction rate constant, were determined. The reaction rate of sulfur dioxide in corn grain followed first-order kinetics, with rate constants in the range 1.49×10-7to 9.78×10-7s-1for steeping temperatures from 25 to 55 °C. The Arrhenius activation energy for sulfur dioxide loss was 60.5 kJ/mol. The fitting of the mathematical model to the absorption curves determined the diffusion coefficient of sulfur dioxide in corn kernels. These varied from 1.17×10-11to 5.18×10-11m2/s for the temperature range 25-55 °C. Temperature-dependent diffusion coefficients was shown to obey the Arrhenius equation with an activation energy of 39.8 kJ/mol. © 2001 Academic Press.
author Haros, Claudia Mónica
Aguerre, Roberto Jorge
author_facet Haros, Claudia Mónica
Aguerre, Roberto Jorge
author_sort Haros, Claudia Mónica
title Absorption Kinetics of Sulfur Dioxide in Flint Corn during Steeping
title_short Absorption Kinetics of Sulfur Dioxide in Flint Corn during Steeping
title_full Absorption Kinetics of Sulfur Dioxide in Flint Corn during Steeping
title_fullStr Absorption Kinetics of Sulfur Dioxide in Flint Corn during Steeping
title_full_unstemmed Absorption Kinetics of Sulfur Dioxide in Flint Corn during Steeping
title_sort absorption kinetics of sulfur dioxide in flint corn during steeping
publishDate 2001
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00236438_v34_n5_p293_Haros
http://hdl.handle.net/20.500.12110/paper_00236438_v34_n5_p293_Haros
work_keys_str_mv AT harosclaudiamonica absorptionkineticsofsulfurdioxideinflintcornduringsteeping
AT aguerrerobertojorge absorptionkineticsofsulfurdioxideinflintcornduringsteeping
_version_ 1768545819476099072

Ejemplares similares