Paper Title:
Viscoelastic Properties of Galactomannan Solutions
  Abstract

In this work, we deal with galactomannan from seeds of Cassia fistula. Galactomannan widely use to improve and develop the products in various industries. It is linear polysaccharide having a backbone of -14 linked D-mannose residues. To this chain, single alfa-D-galactose residues are linked by C-1 through a glycosidic bond to C-6 of mannose. The physicochemical and viscoelastic properties of galactomannan were here investigated. The results showed that the mannose to galactose ratios were 3.35 and 3.54 for crude and purified galactomannans, respectively, while their intrinsic viscosities at 20oC were 11.55 and 12.03 dl/g for crude and purified galactomannans, respectively. Then, the rheological properties of galactomannan solutions at different concentrations from 0.6 to 3.4 %wt were analyzed using a Haake Rheometer RS75, equipped with C35Ti sensor at 20oC. The frequency sweeps for galactomannan solutions show the typical shape for macromolecular solutions. The cross-over frequency decreased as galactomannan concentration increased.

  Info
Periodical
Advanced Materials Research (Volumes 93-94)
Edited by
S. Suttiruengwong and W. Sricharussin
Pages
599-602
DOI
10.4028/www.scientific.net/AMR.93-94.599
Citation
K. Khounvilay, W. Sittikijyothin, "Viscoelastic Properties of Galactomannan Solutions", Advanced Materials Research, Vols. 93-94, pp. 599-602, 2010
Online since
January 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Komgrit Sawangkan, Wancheng Sittikijyothin, Chutimon Satirapipathkul
III. Applications of Biomaterial
Abstract:The polysaccharides from seeds of Cassia fistula and Delonix regia were used to prepare the films. After added with Quercus...
397
Authors: Jin Ba, Li Qiang Jin, Wen Run Yao
Chapter 9: Polymer Materials
Abstract:Tara gum is a natural hydrocolloid obtained by a mechanical process from the endosperm of Tara tree seeds. In this study, chemical...
986