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The data indicate that the ingestion of xanthan caused no adverse dietary nor physiological effects in any of the subjects.
This is because of the synergistic rheological interaction between xanthan and guar gum.
Both xanthan gum and guar gum induced association between the gelatinized granules probably due to bridging.
The content of xanthan gum appears as a determinant variable of the rheological behavior of the puree, both at short and long times.
The use of OH radical scavengers such as sugars and antioxidant compounds could be used in addition to xanthan gum to obtain improved protection.
These results provide evidence that xanthan gum plays a major role in the rheological behaviour of the xanthangalactomannan systems even at a low concentration.
It is suggested that the degree of virulence could be used as a criterion for selecting and isolating producers of high quality xanthan gum.
It is noteworthy that, now, for the majority of applications in which xanthan gum is the product of choice, it is being used almost exclusively for the functional benefits that it provides.

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