Heteropolysaccharide BM07

A thickening agent comprising the heteropolysaccharide BM07 produced by fermentation of a medium comprising at least one source of assimilable carbon, by a strain of Agrobacterium tumefaciens I-736, or one of the recombinants or mutants thereof.

A suspending agent comprising the heteropolysaccharide BM07 produced by fermentation of a medium comprising at least one source of assimilable carbon, by a strain of Agrobacterium tumefaciens I-736, or one of the recombinants or mutants thereof.

A stabilizing agent comprising the heteropolysaccharide BM07 produced by fermentation of a medium comprising at least one source of assimilable carbon, by a strain of Agrobacterium tumefaciens I-736, or one of the recombinants or mutants thereof.

A composition of matter comprising an aqueous solution of an organic acid, strong base and/or salt of an organic or inorganic acid, said aqueous solution containing a thickening amount of the heteropolysaccharide BM07 produced by fermentation of a medium comprising at least one source of assimilable carbon, by a strain of Agrobacterium tumefaciens I-736, or one of the recombinants or mutants thereof.

In a process for the thickening of an aqueous medium, the improvement which comprises utilizing as the thickening agent therefor, an effective amount of the heteropolysaccharide BM07 produced by fermentation of a medium comprising at least one source of assimilable carbon, by a strain of Agrobacterium tumefaciens I-736, or one of the recombinants or mutants thereof.

In a process for the cleaning or descaling of a substrate surface, the improvement which comprises including in the cleaning/descaling composition therefor, the heteropolysaccharide BM07 produced by fermentation of a medium comprising at least one source of assimilable carbon, by a strain of Agrobacterium tumefaciens I-736, or one of the recombinants or mutants thereof.

The heteropolysaccharide BM07 produced by fermentation of a medium comprising at least one source of assimilable carbon, by a strain of Agrobacterium tumefaciens I-736, or one of the recombinants or mutants thereof, having an intrinsic viscosity ranging from 140 to 250 dl/g.

A solution comprising (i) 0.1% by weight of a heteropolysaccharide BM07 produced by fermentation of a medium comprising at least one source of assimilable carbon by a strain of Agrobacterium tumefaciens I-756, or one of the recombinants or mutants thereof, and (ii) distilled water, said solution having a viscosity at 25.degree. C. after 24 hours ranging from 400 to 700 mPa.s.

A solution comprising (i) 0.2% by weight of a heteropolysaccharide BM07 produced by fermentation of a medium comprising at least one source of assimilable carbon by a strain of Agrobacterium tumefaciens I-736, or one of the recombinants or mutants thereof, and (ii) a 20% aqueous solution of NaCl, said solution having a viscosity after 24 hours ranging from 1,700 to 2,100 mPa.s.

An aqueous solution comprising 0.2% by weight of a heteropolysaccharide BM07 produced by fermentation of a medium comprising at least one source of assimilable carbon, by a strain of Agrobacterium tumefaciens I-736, or one of the recombinants or mutants thereof at pH, said solution having a viscosity at pH 7 and 25.degree. C. ranging from 1,400 to 2,000 mPa.s.

An aqueous solution comprising 0.2% by weight of a heteropolysaccharide BM07 produced by fermentation of a medium comprising at least one source of assimilable carbon, by a strain of Agrobacterium tumefaciens I-736, or one of the recombinants or mutants thereof, said solution having a viscosity at pH 1.7 and 25.degree. C. after 24 hours ranging from 1,400 to 2,000 mPa.s.

An aqueous solution comprising 0.2% by weight of a heteropolysaccharide BM07 produced by fermentation of a medium comprising at least one source of assimilable carbon, by a strain of Agrobacterium tumefaciens I-736, or one of the recombinants or mutants thereof, said solution having a viscosity at pH 11.8 and 25.degree. C. after 24 hours ranging from 1,400 to 2,000 mPa.s.

A solution comprising (i) 0.2% by weight of a heteropolysaccharide BM07 produced by fermentation of a medium comprising at least one source of assimilable carbon by a strain of Agrobacterium tumefaciens I-736, or one of the recombinants or mutants thereof and (ii) distilled water, said solution being subjected to a temperature of 80.degree. C. for 24 hours and having a viscosity ranging from 1,000 to 2,000 mPa.s.