Method for improving xanthan yield
AssigneeStandard Oil Company (Indiana)
InventorWilliam P. Weisrock
Life of this patent
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Abstract
In the production of xanthan gum by action of Xanthomonas bacteria on a nutrient medium, the yield of xanthan gum can be improved by the addition of deoxycholate or cholate to the nutrient medium at the time of inoculation of the bacteria on the nutrient medium.
Claims11
A process for the production of heteropolysaccharide comprising culturing a microorganism of the genus Xanthomonas in a nutrient medium, said nutrient medium containing a sufficient amount of an additive compound selected from a group consisting of deoxycholic acid, cholic acid, salts thereof and mixtures thereof.
A continuous process for the production of heteropolysaccharide by continuously culturing a microorganism of the genus Xanthomonas and a nutrient medium being added to a fermentation zone, withdrawing a heteropolysaccharide containing effluent from said zone while continuing said process at a rate such that an essential steady-state condition is maintained, the improvement which comprises conducting said process in the presence of an additive compound selected from a group consisting of deoxycholic acid, cholic acid, salts thereof and mixtures thereof, whereby the yield of said heteropolysaccharide produced per gram of said microorganism at steady-state is increased.
Dependencies are inferred from the claim text.