Moisture Sorption Isotherms of Khao Dawk Mali 105 Paddy

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Tinnakorn Pengprakhon
Krawee Treeamnuk
Tawarat Treeamnuk
Nuttapong Ruttanadech

Abstract

The objectives of this research were the determination of sorption isotherms and the comparison of mathematical models to determine a suitable model in different temperature ranges for Khao Dawk Mali 105. This experiment was made by placing samples in containers which were contained saturated salt solutions to control the humidity in the ranges of 5.32 – 84.34 %RH and the hot air oven was used to provide temperature conditions at 25 and 70 oC. The samples were in containers until the mass of samples was constant so the equilibrium between the samples and the surrounding was reached and then the equilibrium moisture content was determined. The experiment found that for the same relative humidity in the air when the temperature increased, the equilibrium moisture content would decrease and for the same temperature in the air when the relative humidity increased, the equilibrium moisture content would increase. Furthermore, the comparison of models by analysis from R-Squared (R2) and Chi-Square (gif.latex?\chi2) in each temperature found that Henderson model was a suitable model at 25 oC and Chung & Pfost was a suitable model at 70 oC

Article Details

How to Cite
[1]
T. Pengprakhon, K. Treeamnuk, T. Treeamnuk, and N. Ruttanadech, “Moisture Sorption Isotherms of Khao Dawk Mali 105 Paddy”, RMUTP Sci J, vol. 16, no. 2, pp. 86–98, Dec. 2022.
Section
บทความวิจัย (Research Articles)

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