Polysaccharides
Found 505 products of "Polysaccharides"
N-Acetyl-heparin
CAS:N-Acetyl heparin is a glycosaminoglycan, which occurs in many mammalian tissues and has important anticoagulant and thrombolytic properties. The chemical structure is composed mainly of two disaccharide repeating units A and B. A is L-iduronic acid 2-suplhate linked α-(1,4) to 2-deoxy-2-sulfamido-D-galactose 6-sulphate, while B is D-glucuronic acid β-(1,4) linked to 2-deoxy-2-sulfamido-D-glucose 6-sulphate.Purity:Min. 95%Color and Shape:PowderHyaluronic acid sodium salt - Extra low molecular weight 8,000-15,000
CAS:Gycosaminoglycan in many organs; joint lubricant and shock absorberFormula:(C14H20NO11Na)nPurity:Min. 91 Area-%Color and Shape:PowderHyaluronic acid sodium - Average MW 1.8 - 2.5 million Da
CAS:Gycosaminoglycan in many organs; joint lubricant and shock absorberFormula:(C14H20NO11Na)nPurity:Min. 95%Color and Shape:PowderPolyguluronic acid
CAS:Polyguluronic acid is produced from alginates by partial hydrolysis and chromatography of brown algae such as Laminaria digitata, Ascophyllum nodosum and Fucus spp.
The image was kindly provided by Prof Mike Guiry from Cork who runs ‘The Seaweed Site’.MW is ca 6000 - 8000Da.poly-M levels are ca 3%Purity:(%) Min. 80%Color and Shape:Off-White PowderMolecular weight:194.14b-D-Glucan-from yeast (Saccharomyces cerevisiae)
CAS:In addition to the β-glucans from cereals, another group of β-glucans are found in the cell walls of yeast (Saccharomyces cerevisiae), bacteria and fungi, with significantly differing physicochemical properties dependent on source. Typically these β-glucans form a linear backbone with 1,3 β-glycosidic bonds but vary with respect to molecular mass, solubility, viscosity, branching structure, and gelation properties, causing diverse physiological effects in animals. They are structural components in the cell walls of Saccharomyces cerevisiae and to provide stability, they have a few b-1,6 branch points that lock into other cell wall components (1 in 5 glucose residues). So in any extraction you get a few 1,6 linked glucose residues ~5%. The yeast and fungal β-glucans have been investigated for their ability to modulate the immune system. They are also used in various nutraceutical and cosmetic products, as texturing agents, and as fibre supplements. Their detailed molecular structures are key to the physical properties that they exhibit, such as water solubility, viscosity, gelation properties and physiological functions. The image was kindly provided by Dr. Chris Lawson.Purity:(%) Min. 80%Color and Shape:Off-White PowderLaminaran - from Eisenia bicyclis
CAS:Laminaran is a polysaccharide that co-occurs with fucoidan and alginate in brown seaweeds such as Laminaria digitata, Laminaria cloustoni, Eisenia bicyclis and Thallus laminariae. It is a β-1,3-linked glucan which it is claimed stimulates the immune system in mammals and fish.
The image was kindly provided by Prof Mike Guiry from Cork who runs ‘The Seaweed Site’.Color and Shape:White Off-White PowderHyaluronic acid sodium, average MW 2.0 - 2.5 million Da
CAS:Gycosaminoglycan in many organs; joint lubricant and shock absorberFormula:(C14H20NO11Na)nPurity:Min. 95%Color and Shape:PowderHyaluronic acid sodium salt - Low molecular weight 80,000 - 100,000
CAS:Gycosaminoglycan in many organs; joint lubricant and shock absorber. Made by a bacterial, Streptococcus fermentation.Formula:(C14H20NO11Na)nPurity:Min. 91%Color and Shape:PowderFucoidan - Ascophyllum nodosum, analytical grade
CAS:A fucan sulphate found in brown marine algae (Phaeophyta-typically Fucus vesiculotus, Ascophyllum nodosum (illustrated), Alaria and Cladosiphon) and has been shown to have anticoagulant activity. The main constituents are α-1,4 and α-1,2 linked L-fucose sulphates although galactose also occurs and there are many variations of the basic structure found in different species of Phaeophyta.Molecular weight cut off at 300kDa.The image was kindly provided by Prof Mike Guiry from Cork who runs ‘The Seaweed Site’.Color and Shape:PowderHyaluronic acid sodium - MW 30000-40000
CAS:Gycosaminoglycan in many organs; joint lubricant and shock absorberFormula:(C14H20NO11Na)nPurity:Min. 95%Color and Shape:PowderDextran sulfate sodium salt - MW 9,000-16,000
CAS:Dextran sulphate is a dextran derivative whose ulcer (colitis) -causing properties were first reported in hamsters and extrapolated a few years later to mice and rats. The exact mechanisms through which dextran sulphate induces intestinal inflammation are unclear but may be the result of direct damage of the monolayer of epithelial cells in the colon, leading to the crossing of intestinal contents (for e.g. commensal bacteria and their products) into underlying tissue and therefore induction of inflammation. The dextran sulphate sodium induced ulceration model in laboratory animals has some advantages, when compared to other animal models of colitis, due to its simplicity and similarities to human inflammatory bowel disease.Color and Shape:PowderFucoidan - Ascophyllum nodosum
CAS:Please enquire for more information about Fucoidan - Ascophyllum nodosum including the price, delivery time and more detailed product information at the technical inquiry form on this pageColor and Shape:PowderGuar gum
CAS:Guar gum is obtained from the seed of the legume Cyamopsis tetragonolobus, an annual plant that grows mainly in semi-arid regions of India. The structure of the polysaccharide consists of a main chain of (1,4)-linked β-D-mannopyranosyl units with single α-D-galactopyranosyl units linked (1,6) on average to every second main chain unit. Guar has a high viscosity in aqueous solution, shows marked pseudoplastic behaviour and forms synergistic gels in the presence of other gums such as carrageenan and xanthan gum.
Formula:C10H14N5Na2O12P3Color and Shape:White PowderMolecular weight:535.15 g/molSodium alginate, low viscosity
CAS:Sodium salt of a polysaccharide obtained from the brown seaweeds (e.g. Laminaria hyperborea, Fucus vesiculosus, Ascophyllum nodosum). The chemical structure consists of blocks of (1,4) linked-β-D-polymannuronic acid (poly M), (1,4) linked-α-L-polyguluronic acid (poly G) and alternating blocks of the two uronic acids (poly MG). Alginates form strong gels with divalent metal cations and the egg box model has been used to describe this form of gelation. The main use for alginate is in textile printing as a thickener in the printing of cottons with reactive dyes. In the food industry it is used as a thickener and gelling agent. Recently, it has been shown that ternary mixtures of Konjac glucomannan, Xanthan gum and Sodium alginate can form a non-covalently linked complex which exhibits enhanced rheological properties of value in, for example, functional foods. The image was kindly provided by Prof Mike Guiry from Cork who runs ‘The Seaweed Site’.Viscosity: min 50 mPa.sColor and Shape:White PowderPropylene glycol alginate
CAS:Propylene glycol alginate is a reaction product of propylene oxide and alginic acid. At the 49th JECFA meeting (1997) it was resolved that the total dietary propylene glycol intake from all sources should be allocated an ADI of 0-25 mg/kg. Applications include as a stabiliser in beer foam due to electrostatic interaction between carboxyl groups on the glycol alginate molecules and amino groups on the peptides in the bubble wall and in ice cream by emulsifying the fat.Esterification is greater then 80%Viscosity (1% aq solution): 200-300 mpa.s
Purity:Min. 95%Color and Shape:PowderHydroxypropyl cellulose - Average MW 150,000
CAS:In water, hydroxypropyl cellulose forms liquid crystals with many mesophases depending on concentration. These mesophases include isotropic, anisotropic, nematic and cholesteric, the latter resulting in many colors such as violet, green and red. Pharmaceutical applications include treatments for medical conditions such as dry eye syndrome (keratoconjunctivitis sicca), recurrent corneal erosions, decreased corneal sensitivity, exposure and neuroparalytic keratitis. It is also used as a binder in tablets. Hydroxypropylcellulose is also used as a thickener, a binder and emulsion stabiliser in foods with E number E463. HPC is used as a support matrix for DNA separations by capillary and microchip electrophoresis.
Cellulose - Arbocel
CAS:Cellulose is a linear polysaccharide of β 1-4 linked glucose residues. The polysaccharide chains are bundled as microfibrils in cell walls and provide the essential structural components within growing plants. Each microfibril exhibits a high degree of three-dimensional internal bonding resulting in a crystalline structure that is insoluble in water, resistant to reagents and very strong.Color and Shape:PowderEthyl cellulose
CAS:Ethyl cellulose is similar in structure to methyl cellulose with ethyl replacing the methyl groups. It is approved for use in regulated markets such as food and pharmaceuticals. In pharmaceuticals it can mask the taste of bitter actives, enhance the strength and appearance of tablets and capsules, and enable controlled release formulations. In food products it functions as a binder, film former and flavour fixative.Purity:Min. 95%Color and Shape:White Yellow PowderStarch from potato
CAS:Starch is an energy storing polysaccharide produced by higher plants and some algae. Pure starch is a white, tasteless and odorless powder that is insoluble in cold water or alcohol. It consists of two types of polysaccharide: the linear and helical amylose (α-1,4-linked glucose) and the branched amylopectin (α-1,4 and α-1,6-linked glucose). Depending on the plant, starch generally contains 20 to 25% amylose and 75 to 80% amylopectin by weight.Color and Shape:White PowderBacterial alginate - from fermentation of Azotobacter vinelandii or Pseudomonas mendocina
An alginate-like polysaccharide produced by the fermentation of Azotobacter vinelandii or Pseudomonas mendocina. The chemical structure consists of blocks of (1,4) linked-β-D-polymannuronic acid (poly M), (1,4) linked-α-L-polyguluronic acid (poly G) and alternating blocks of the two uronic acids (poly MG). Unlike the alginate from seaweed, this polysaccharide is partially acetylated.Color and Shape:PowderMolecular weight:~100KDa
