Production of xanthane-type polysaccharides

Details Production of xanthane-type polysaccharides Production of xanthane-type polysaccharides

C - Chemistry, Metallurgy

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C12P 19/00 (2006.01) C12P 19/06 (2006.01) C12Q 1/00 (2006.01)

Patent

CA 1074241

ABSTRACT OF THE DISCLOSURE The method of the invention, to produce a polysaccharide of the xanthane type, makes use of a strain of Xanthomonas, notably of the strain n?ATCC 31 176 deposited on October 14, 1475, which is cultivated on a me- dium with 5 to 55 g/l or more of carbohydrates and comprising at least one amino-acid selected from glutamic acid, glutamine, arginine, tyrosine, threonine, aspartion acid, asparagine, proline, leucine tryptophane and other amino-acids gining a production of polysaccharide at least equal to 50% of that yielded by corn steep liquor, the total nitrogen of said medium being 0.1 g/1 to 5 g/l ; the fermentation is carried out at 25-35°C under aerobiosis.

263296

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