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

Type

journal article in Web of Science

Language

English

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.

Keywords

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

Authors

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

Released

1. 6. 2017

Publisher

Food Hydrocolloids

ISBN

0268-005X

Periodical

FOOD HYDROCOLLOIDS

Year of study

67C

Number

67C

State

United States of America

Pages from

148

Pages to

156

Pages count

9

URL

http://www.sciencedirect.com/science/article/pii/S0268005X16304817

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",
  journal="FOOD HYDROCOLLOIDS",
  year="2017",
  volume="67C",
  number="67C",
  pages="148--156",
  doi="10.1016/j.foodhyd.2017.01.011",
  issn="0268-005X",
  url="http://www.sciencedirect.com/science/article/pii/S0268005X16304817"
}