Abstract: Disclosed herein is a sphingan oligosaccharide composition, its uses, and a process for preparing the same.

Abstract: Disclosed herein is an ingestible composition comprising a sphingan and its use as a prebiotic.

Abstract: Disclosed herein is a sphingan oligosaccharide composition, its uses, and a process for preparing the same.

Abstract: Disclosed herein is a sphingan oligosaccharide composition, its uses, and a process for preparing the same.

Abstract: Disclosed herein is an ingestible composition comprising a sphingan and its use as a prebiotic.

Abstract: Gellan gum products having an increased bulk density are provided that include a gellan gum co-precipitated with a co-precipitation agent to form a co-precipitated gellan composition. The co-precipitation agent and the gellan gum are present in the co-precipitated composition in a weight ratio effective to produce the gellan gum product, in which the gellan gum product bulk density is greater than a bulk density of the gellan gum precipitated, dried, and milled without the co-precipitation agent. This greater bulk density is about 0.30 g/mL or greater. Methods are provided for preparing a gellan gum product having an improved bulk density, in which the gellan gum product bulk density is greater than a bulk density of the gellan gum precipitated, dried, and milled without the co-precipitation agent. This greater bulk density is about 0.30 g/mL or greater.

Abstract: The present invention provides improved polysaccharides (e.g., gellan and diutan) produced by mutant gene N, M or I Sphingomonas strains containing at least one genetic modification that favors slime-forming polysaccharide production. Methods of making the mutant Sphingomonas strains and the culture broth containing such mutant Sphingomonas strains are also provided.

Abstract: Microfibrous cellulose (MFC) broths are provided having improved performance as compared to wet cake microfibrous cellulose (MFC) and powdered microfibrous cellulose (MFC). In embodiments, compositions having an effective amount of an MFC broth and an effective amount of a surfactant have an improved yield value as compared to a composition having a surfactant and a wet cake MFC, a powdered MFC, or a combination thereof at the same concentration as the MFC broth. Also, methods are provided for improving the yield value of surfactant compositions by adding an effective amount of a microfibrous cellulose broth to an effective amount of surfactant to provide a surfactant composition having a yield value that is higher than a composition having the surfactant and a wet cake MFC, a powdered MFC, or a combination thereof at the same concentration as the microfibrous cellulose broth.

Abstract: Surfactant systems are provided using microfibrous cellulose to suspend particulates. In one embodiment the surfactant system includes a microfibrous cellulose at a concentration from about 0.05% to about 1.0% (w/w), a surfactant at a concentration of about 5% to about 50% (w/w active surfactant), and a particulate. Also provided herein are methods for preparing surfactant systems including microfibrous cellulose.

Abstract: Surfactant systems are provided using microfibrous cellulose to suspend particulates. In one embodiment the surfactant system includes a microfibrous cellulose at a concentration from about 0.05% to about 1.0% (w/w), a surfactant at a concentration of about 5% to about 50% (w/w active surfactant), and a particulate. Also provided herein are methods for preparing surfactant systems including microfibrous cellulose.

Abstract: The production of a diutan polysaccharide exhibiting increased viscosity properties as compared with previously produced polysaccharide of the same type of repeating units. Such an improved diutan polysaccharide is produced through the generation of a derivative of Sphingomonas sp. ATCC 53159 that harbors a multicopy broad host-range plasmid into which genes for biosynthesis of diutan polysaccharide have been cloned. The inventive methods of production of such an improved diutan polysaccharide, as well as the novel cloned genes required to produce the improved diutan within such a method, are also encompassed within this invention. Additionally, the novel engineered Sphingomonas strain including the needed DNA sequence is encompassed within this invention.

Abstract: The present invention provides improved polysaccharides (e.g., gellan and diutan) produced by mutant gene R, M or N Sphingomonas strains containing at least one genetic modification that favors slime-forming polysaccharide production. Methods of making the mutant Sphingomonas strains and the culture broth containing such mutant Sphingomonas strains are also provided.

Abstract: The invention relates to mutant strains of the genus Sphingomonas which have a mutation in at least one gene encoding a protein involved in polyhydroxybutyrate (“PHB”) synthesis that allows the mutant strains to produce PHB-deficient Sphingans. The invention is also directed to a process for preparing a clarified Sphingan solution comprising heating aqueous Sphingan solution, in particular PHB-deficient Sphingan solution, to a clarification temperature of about 30° C. to about 70° C., and treating the solution with a clarification agent and enzymes. In addition, the invention is directed to a food or industrial product comprising a PHB-deficient and/or clarified Sphingan. One particular embodiment of the invention is directed to a clarified, PHB-deficient high-acyl gellan and the processes of making thereof.

Abstract: PHB-deficient Sphingomonas strains having improved sphingan yield are provided. Certain of the Sphingomonas strains are diutan-producing strains that exhibit a dramatic improvement in productivity and yield due to a combination of certain genetic modifications that affect PHB and sphingan synthesis. Moreover, the sphingans produced from such strains have superior characteristics including improved filterability, clarity, and improved rheology-modifying characteristics. The sphingans provided are, thus, highly desirable in a variety of commercial and industrial uses, including personal care items, cement applications, and oilfield applications.

Abstract: The present invention provides improved polysaccharides (e.g., gellan and diutan) produced by mutant gene R, M or N Sphingomonas strains containing at least one genetic modification that favors slime-forming polysaccaride production. Methods of making the mutant Sphingomonas strains and the culture broth containing such mutant Sphingomonas strains are also provided.

Abstract: The invention relates to mutant strains of the genus Sphingomonas which have a mutation in at least one gene encoding a protein involved in polyhydroxybutyrate (“PHB”) synthesis that allows the mutant strains to produce PHB-deficient Sphingans. The invention is also directed to a process for preparing a clarified Sphingan solution comprising heating aqueous Sphingan solution, in particular PHB-deficient Sphingan solution, to a clarification temperature of about 30° C. to about 70° C., and treating the solution with a clarification agent and enzymes. In addition, the invention is directed to a food or industrial product comprising a PHB-deficient and/or clarified Sphingan. One particular embodiment of the invention is directed to a clarified, PHB-deficient high-acyl gellan and the processes of making thereof.

Abstract: PHB-deficient Sphingomonas strains having improved sphingan yield are provided. Certain of the Sphingomonas strains are diutan-producing strains that exhibit a dramatic improvement in productivity and yield due to a combination of certain genetic modifications that affect PHB and sphingan synthesis. Moreover, the sphingans produced from such strains have superior characteristics including improved filterability, clarity, and improved rheology-modifying characteristics. The sphingans provided are, thus, highly desirable in a variety of commercial and industrial uses, including personal care items, cement applications, and oilfield applications.

Abstract: Compositions are provided that are suitable for safe consumption by a patient with dysphagia. In one embodiment, the compositions include a modified xanthan gum in an amount suitable to provide a viscous, free-flowing solution having gel-like properties. The modified xanthan gum comprises a non-pyruvylated xanthan gum, a reduced-pyruvylated xanthan gum, or a combination thereof. The composition desirably has a viscosity of greater than about 2000 cP and is characterized as having a shape retention of greater than about 50%. Also provided are methods for their preparation and use.

Abstract: Surfactant systems are provided using microfibrous cellulose to suspend particulates. In one embodiment the surfactant system includes a microfibrous cellulose at a concentration from about 0.05% to about 1.0% (w/w), a surfactant at a concentration of about 5% to about 50% (w/w active surfactant), and a particulate. Also provided herein are methods for preparing surfactant systems including microfibrous cellulose.

Abstract: The production of a diutan polysaccharide exhibiting increased viscosity properties as compared with previously produced polysaccharide of the same type of repeating units. Such an improved diutan polysaccharide is produced through the generation of a derivative of Sphingomonas sp. ATCC 53159 that harbors a multicopy broad host range plasmid into which genes for biosynthesis of diutan polysaccharide have been cloned. The inventive methods of production of such an improved diutan polysaccharide, as well as the novel cloned genes required to produce the improved diutan within such a method, are also encompassed within this invention. Additionally, the novel engineered Sphingomonas strain including the needed DNA sequence is encompassed within this invention.