Cellulase-free xanthan gum and process for producing same

Details Cellulase-free xanthan gum and process for producing same Cellulase-free xanthan gum and process for producing same

1975-08-22

1978-01-24

Brown, Johnnie R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

C08B 3700

Patent

active

040705358

ABSTRACT:
Intimate intermingling, as in a tumble reactor, of wet particulate xanthan gum, with either propylene oxide, .beta.-propiolactone, glutaraldehyde or pivalolactone, as essentially the only gas present, at about 40.degree.-70.degree. C., for from 1-5 hours, produces xanthan gum in which the cellulase enzyme is inactivated, but in which the viscosity of solutions is increased; the propylene oxide is removed to afford a residual propylene oxide content of not more than 300 ppm in the product xanthan gum.

REFERENCES:
patent: 3256271 (1966-06-01), Schweiger
patent: 3349077 (1967-10-01), Schweiger
patent: 3531465 (1968-08-01), Bridgeford
patent: 3865806 (1975-02-01), Knodel
patent: 3919189 (1975-11-01), Empey et al.

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