SciELO - Scientific Electronic Library Online

vol.40 número4Simple, low-cost flow controllers for time averaged atmospheric sampling and other applications índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados



  • No hay articulos citadosCitado por SciELO

Links relacionados

  • No hay articulos similaresSimilares en SciELO


Latin American applied research

versión impresa ISSN 0327-0793


KASHIRI, M.; KASHANINEJAD, M.  y  AGHAJANI, N.. Modeling water absorption of sorghum during soaking. Lat. Am. appl. res. [online]. 2010, vol.40, n.4, pp. 383-388. ISSN 0327-0793.

Water absorption of sorghum during soaking in water at temperatures of 10, 20, 30, 40 and 50 ºC was simulated using Peleg's model. The weight gain during soaking process was determined in terms of moisture content. Peleg's equation was adequately capable to predict water uptake of sorghum under the experimental conditions. The Peleg rate constant, k1, and capacity constant, k2, decreased from 11.8×10-2 to 0.95×10-2 h %-1 and 2.46×10-2 to 2.06×10-2 %, respectively, with increasing temperature. The effective diffusivity was evaluated by fitting experimental absorption data to Fick's second law of diffusion. Effective diffusivity of water varied from 8.376×10-12 to 2.22×10-12 m2.s-1 over the temperature range studied, with an energy activation of 24.21 kJ.mol-1. The temperature dependence of the diffusivity coefficient was described satisfactorily by Arrhenius-type relationship.

Palabras clave : Peleg's Model; Soaking; Sorghum; Water Absorption.

        · texto en Español     · Español ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License