Desorption isotherm model for a malaysian rough rice variety (MR219)

M. Nordin Ibrahim, K. Tajaddodi Talab, S. Spotar, M. Kharidah, A. T. Rosnita

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Moisture desorption model of long grain Malaysian rough rice variety (MR219) was experimentally obtained using the static gravimetric method for different combinations of temperature (40, 45, 50, 55°C) and water activities (0.0507 to 0.9331). Five most commonly used models with three parameters namely modified Chung-Pfost, modified GAB, modified Halsey, modified Henderson and modified Oswin and a four parameters model (Zuritz et al., 1978) were determined for their ability to fit the experimental data using non linear regression techniques. Comparisons between all models were made on the basis of standard error of estimate (SEE), residual sum squares (RSS) and residual plots. Based on the results of this study, the Zuritz et al., modified Chung-Pfost and modified GAB models could be useful to predict the desorption EMC of MR219. The modified Halsey, modified Henderson and modified Oswin presented a poor fitting to the experimental data. In addition, the model by Zuritz et al. was found to be the most appropriate equation for representing the desorption isotherm model for MR219 at the range of temperatures from 40°C to 60°C.

Original languageEnglish
Pages (from-to)189-198
Number of pages10
JournalPertanika Journal of Tropical Agricultural Science
Volume36
Issue number2
Publication statusPublished - May 2013
Externally publishedYes

Fingerprint

rough rice
desorption
Isotherms
Desorption
isotherm
rice
Temperature
Linear Models
Water
Electromagnetic compatibility
Oryza
Linear regression
water activity
temperature
Moisture
moisture
methodology

Keywords

  • Desorption
  • Equilibrium moisture content
  • Fit ability
  • Rough rice
  • Static gravimetric

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Agricultural and Biological Sciences(all)
  • Chemical Engineering(all)
  • Computer Science(all)
  • Environmental Science(all)

Cite this

Ibrahim, M. N., Talab, K. T., Spotar, S., Kharidah, M., & Rosnita, A. T. (2013). Desorption isotherm model for a malaysian rough rice variety (MR219). Pertanika Journal of Tropical Agricultural Science, 36(2), 189-198.

Desorption isotherm model for a malaysian rough rice variety (MR219). / Ibrahim, M. Nordin; Talab, K. Tajaddodi; Spotar, S.; Kharidah, M.; Rosnita, A. T.

In: Pertanika Journal of Tropical Agricultural Science, Vol. 36, No. 2, 05.2013, p. 189-198.

Research output: Contribution to journalArticle

Ibrahim, MN, Talab, KT, Spotar, S, Kharidah, M & Rosnita, AT 2013, 'Desorption isotherm model for a malaysian rough rice variety (MR219)', Pertanika Journal of Tropical Agricultural Science, vol. 36, no. 2, pp. 189-198.
Ibrahim, M. Nordin ; Talab, K. Tajaddodi ; Spotar, S. ; Kharidah, M. ; Rosnita, A. T. / Desorption isotherm model for a malaysian rough rice variety (MR219). In: Pertanika Journal of Tropical Agricultural Science. 2013 ; Vol. 36, No. 2. pp. 189-198.
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