Heteropolysaccharides
AssigneeDsm IP Assets B.V.
InventorsCornelia Elizabeth Paulina Maljaars, Pim Van Hee
Life of this patent
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Abstract
The present invention relates a heteropolysaccharide characterized in that it is substantially composed of the monosaccharides glucose and galactose and rhamnose and N-acetylgalactosamine and a process for the production thereof. The invention further relates to a bacterium capable of producing said heteropolysaccharide and to the use of the heteropolysaccharide and the bacterium for improving the texture of fermented milk products.
Claims9
A culture medium comprising a bacterium capable of producing a heteropolysaccharide composed of at least about 90%, based on dry matter, monosaccharides glucose and galactose and rhamnose and N-acetylgalactosamine,
- wherein the heteropolysaccharide has a molecular weight of 100 kDa to 10,000 kDa;
- wherein the heteropolysaccharide comprises a repeating unit whereby the repeating unit is a pentasaccharide composed of the monosaccharides glucose and galactose and rhamnose and N-acetylgalactosamine, and
- wherein the pentasaccharide has the following composition:
- glucose:galactose:rhamnose:N-acetylgalactosamine=2:1:1:1.
A process for production of a fermented milk product comprising adding a Streptococcus salivarius thermophilus bacterium capable of producing a heteropolysaccharide composed of at least about 90%, based on dry matter, monosaccharides glucose and galactose and rhamnose and N-acetylgalactosamine,
- wherein the heteropolysaccharide has a molecular weight of 100 kDa to 10,000 kDa;
- wherein the heteropolysaccharide comprises a repeating unit whereby the repeating unit is a pentasaccharide composed of the monosaccharides glucose and galactose and rhamnose and N-acetylgalactosamine, and
- wherein the pentasaccharide has the following composition:
- glucose:galactose:rhamnose:N-acetylgalactosamine=2:1:1:1,
- to a milk product to a milk product and fermenting the milk product containing the bacterium.
A process for the production of a heteropolysaccharide composed of at least about 90%, based on dry matter, monosaccharides glucose and galactose and rhamnose and N-acetylgalactosamine,
- wherein the heteropolysaccharide has a molecular weight of 100 kDa to 10,000 kDa;
- wherein the heteropolysaccharide comprises a repeating unit whereby the repeating unit is a pentasaccharide composed of the monosaccharides glucose and galactose and rhamnose and N-acetylgalactosamine, and
- wherein the pentasaccharide has the following composition:
- glucose:galactose:rhamnose:N-acetylgalactosamine=2:1:1:1,
- comprising culturing a Streptococcus salivarius thermophilus bacterium capable of producing said heteropolysaccharide under conditions conducive for the production of the heteropolysaccharide, and
- recovering the heteropolysaccharide.
Dependencies are inferred from the claim text.