Degradation of Xanthan Gum

Degradation of Xanthan Gum


Three driving forces for the study on the approaches of degradation of xanthan gum:


  1. 1.      The convenience of industrial application;

The extraordinary stability of xanthan gum is a double-edged sword itself. On one hand, its application has been quickly popularized. On the other hand, some problems have arisen. For example, in the gas and drilling mud industry, the use of xanthan gum can increase the solution viscosity, and thus the cost of subsequent processes will be increased such as oil transportation and purification.


  1. 2.      Information about the structure-function relationship;

By stripping the monosaccharides on the side chain one by one, then studying its properties and comparing it with the wild type, information about the key functional sites can be obtained.


  1. 3.      Oligosaccharide products possibly with special bioactivity

Since oligosaccharide has a magic effect on non-toxic products, anti-virus, antimicrobial, stimulate the proliferation of bifidobacterium in human intestine, plant elicitors, and immunity enhancement activities. Consequently, oligosaccharide fields at present remains a hot research topic. It also aroused people’s interest whether oligosaccharide the plant pathogen possesses a sort of bioactivity. Although the backbone of xanthan gum is the same as cellulose, it is difficult for general proteinase, amylase, cellulose, and hemicellulose to degrade because of protection of regular helical-structure and steric hindrance from the side chain. Usually, acid (hydrochloric acid and hypochloric acid) or powerful oxidants (sodium perborate and ammonium persulfate) is used in the degradation of polysaccharide. Though it works well in the experiment, its practical effects are not ideal and there exist some environmental problems at the same time.

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On December 13th, 2012, posted in: Products and Techniques, xanthan gum by Tags:

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