Publication detail

Study of effects and conditions on the solubility of natural polysaccharide Gum Karaya

POŠTULKOVÁ, H. CHAMRADOVÁ, I. PAVLIŇÁK, D. HUMPA, O. VOJTOVÁ, L. JANČÁŘ, J.

Original Title

Study of effects and conditions on the solubility of natural polysaccharide Gum Karaya

English Title

Study of effects and conditions on the solubility of natural polysaccharide Gum Karaya

Type

journal article in Web of Science

Language

en

Original Abstract

Natural polysaccharide gum karaya (GK, Sterculia urens) is a plant exudates widely available and relatively cheap biomaterial, which is used in food industry. However, GM is insoluble in water and it limits subsequent processing and broader utilization in medicine. Different conditions for the solubilization of GK were evaluated in this work (e.g. type and concentration of hydroxide, concentration of GK dispersion and time of solubilization process) which were not published before. GK samples were compared using different types of characterization techniques such as ATR-FFIR, NMR, TGA-FTIR, DSC, SEM and rheology. Optimized conditions for successful GM solubilization proceeded with 1 mol l(-1) of sodium or potassium hydroxide and 2 wt% dispersion of GM at room temperature. A novel mechanism was suggested and by this mechanism the complex plant based biopolymer can be solubilized through the careful control of its ionic environment and degree of deacetylation. Resulted water soluble GK seems to be promising biomaterial forming hydrogels useful in regenerative medicine. (C) 2017 Elsevier Ltd. All rights reserved.

English abstract

Natural polysaccharide gum karaya (GK, Sterculia urens) is a plant exudates widely available and relatively cheap biomaterial, which is used in food industry. However, GM is insoluble in water and it limits subsequent processing and broader utilization in medicine. Different conditions for the solubilization of GK were evaluated in this work (e.g. type and concentration of hydroxide, concentration of GK dispersion and time of solubilization process) which were not published before. GK samples were compared using different types of characterization techniques such as ATR-FFIR, NMR, TGA-FTIR, DSC, SEM and rheology. Optimized conditions for successful GM solubilization proceeded with 1 mol l(-1) of sodium or potassium hydroxide and 2 wt% dispersion of GM at room temperature. A novel mechanism was suggested and by this mechanism the complex plant based biopolymer can be solubilized through the careful control of its ionic environment and degree of deacetylation. Resulted water soluble GK seems to be promising biomaterial forming hydrogels useful in regenerative medicine. (C) 2017 Elsevier Ltd. All rights reserved.

Keywords

Natural Gum, Polysaccharide, Gum Karaya, Sterculia urens, Solubilization, Deacetylation

Released

01.06.2017

Publisher

Food Hydrocolloids

Pages from

148

Pages to

156

Pages count

9

URL

BibTex


@article{BUT129451,
  author="Hana {Poštulková} and Ivana {Chamradová} and David {Pavliňák} and Otakar {Humpa} and Lucy {Vojtová} and Josef {Jančář}",
  title="Study of effects and conditions on the solubility of natural polysaccharide Gum Karaya",
  annote="Natural polysaccharide gum karaya (GK, Sterculia urens) is a plant exudates widely available and relatively cheap biomaterial, which is used in food industry. However, GM is insoluble in water and it limits subsequent processing and broader utilization in medicine. Different conditions for the solubilization of GK were evaluated in this work (e.g. type and concentration of hydroxide, concentration of GK dispersion and time of solubilization process) which were not published before. GK samples were compared using different types of characterization techniques such as ATR-FFIR, NMR, TGA-FTIR, DSC, SEM and rheology. Optimized conditions for successful GM solubilization proceeded with 1 mol l(-1) of sodium or potassium hydroxide and 2 wt% dispersion of GM at room temperature. A novel mechanism was suggested and by this mechanism the complex plant based biopolymer can be solubilized through the careful control of its ionic environment and degree of deacetylation. Resulted water soluble GK seems to be promising biomaterial forming hydrogels useful in regenerative medicine. (C) 2017 Elsevier Ltd. All rights reserved.",
  address="Food Hydrocolloids",
  chapter="129451",
  doi="10.1016/j.foodhyd.2017.01.011",
  howpublished="online",
  institution="Food Hydrocolloids",
  number="67C",
  volume="67C",
  year="2017",
  month="june",
  pages="148--156",
  publisher="Food Hydrocolloids",
  type="journal article in Web of Science"
}