Moisture Desorption and Adsorption Chareteristics of Gum Arabic from Acacia senegal and A. seyal

Authors

  • Zeinab A.A . Ahmed
  • Abdelazim Yassin Abdelgadir

DOI:

https://doi.org/10.53332/uofkjas.v22i2.1810

Keywords:

Sorption isotherms, equilibrium moisture content, gum Arabic, polynomial functions, drying

Abstract

The objective of this paper was to study the moisture isotherms
characteristics of gum Arabic produced by Acacia senegal and A. seyal.
The equilibrium moisture content of the gum was determined by the
standard static gravimetric methods using various saturated salts solutions
in closed desiccators to provide a range of RH of 0 to 96%. Gum samples
were placed in these desiccators, and kept inside the oven at specified
temperature (30, 40, 50 and 60°C) until equilibrium moisture content was
obtained. Desorption and adsorption isotherms of gum Arabic exhibited
sigmoid curves and indicated clear hysteresis effect. The statistical
analysis indicated that the relationship between equilibrium moisture
content and RH could be well explained by third-order polynomial
functions. Equilibrium moisture content increased with increase in RH
but decreased with increase in temperature

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Published

2023-03-28

How to Cite

. Ahmed, Z. A., & Abdelgadir, . A. Y. (2023). Moisture Desorption and Adsorption Chareteristics of Gum Arabic from Acacia senegal and A. seyal. University of Khartoum Journal of Agricultural Sciences, 22(2). https://doi.org/10.53332/uofkjas.v22i2.1810

Issue

Vol. 22 No. 2 (2014): University of Khartoum Journal of Agricultural Sciences

Section

Articles