Application of the “Dual Sorption” Model for Water Adsorption of Maltodextrin Various DE

Authors

  • Suched Samuhasaneetoo Department of Food Science and Technology, Faculty of Agro-industry, Kasetsart University, Bangkok 10900, Thailand.
  • Siree Chaiseri Department of Food Science and Technology, Faculty of Agro-industry, Kasetsart University, Bangkok 10900, Thailand.
  • Imad A. Farhat Division of Food Science, The University of Nottingham, Sutton Bonington campus, Loughborough, United Kingdom.
  • Tanaboon Sajjaanantakul Department of Food Science and Technology, Faculty of Agro-industry, Kasetsart University, Bangkok 10900, Thailand.
  • Rungnaphar Pongsawatmanit Department of Product Development, Faculty of Agro industry, Kasetsart University, Bangkok 10900, Thailand.

Keywords:

maltodextrin, sorption isotherm, dual sorption, 1H NMR, microvoid

Abstract

To characterize water sorption of maltodextrin various DE, several physical properties were determined, including molecular weight, glass transition temperature, sorption isotherm and 1H pulsed NMR. The average numbers of molecular weight (Mn) and average weight of molecular weight (Mw) were 1,800,27,000; 900, 7,700; 700, 4,400 and water at monolayer were 5.5296, 4.6753 and 4.4553 g water/100 g dry solid for maltodextrin DE 5, 14 and 18.5 respectively. Sorption isotherms indicated DE 5 and DE 14 to exhibit an “s” shape isotherm while for DE 18.5 a discontinuous isotherm occurred. Maltodextrin DE 5 adsorbed more water than DE 14 and 18.5. Dual Sorption theory was applied for sorption data analysis and the parameter (C′H) was estimated. The results indicated that maltodextrin DE 5 had higher sorption in “microvoid” than maltodextrin DE 14 and 18.5. This was strongly supported with the results obtained by 1H pulsed NMR, that maltodextrin DE 5 had more mobile proton mobility in the low relative humidity region than maltodextrin DE 18.5.

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Published

2004-08-30

How to Cite

Suched Samuhasaneetoo, Siree Chaiseri, Imad A. Farhat, Tanaboon Sajjaanantakul, and Rungnaphar Pongsawatmanit. 2004. “Application of the ‘Dual Sorption’ Model for Water Adsorption of Maltodextrin Various DE”. Agriculture and Natural Resources 38 (4). Bangkok, Thailand:515-22. https://li01.tci-thaijo.org/index.php/anres/article/view/243201.

Issue

Vol. 38 No. 4 (2004): July-August

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.