Polisaccaridi
Trovati 498 prodotti per "Polisaccaridi".
Dextran sulfate sodium - MW 5,000-8,000
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.Formula:(C6H7Na3O14S3)nPurezza:Min. 95%Colore e forma:PowderFucogalactan - from Undaria pinnatifida
CAS:Fucogalactan (GFS) is a polysaccharide isolated and purified from the brown seaweed Undaria pinnatifida. The polysaccharide is a sulphated galactose containing fucan. Fucogalactan is currently under investigation for possible therapeutic indications including anti-inflammatory properties, immuno- modulating activities, inhibition of tumor growth, stem cell replentishment, antiviral activity, dementia and ulcer healing.Fucoidan ≥ 75 %
The image was kindly provided by Prof Mike Guiry from Cork who runs ‘The Seaweed Site’.Purezza:(%) Min. 75%Colore e forma:Off-White PowderChondroitin sulfate A sodium salt - Average MW 10,000 - 50,000
CAS:Chondroitin sulfate A sodium salt is a glycosaminoglycan that is derived from chondroitin. It is a complex carbohydrate with a high molecular weight and an average MW of 10,000 to 50,000 Da. The synthesis of the monosaccharide units in chondroitin sulfate A sodium salt occurs by Methylation, Click modification, Polysaccharide, or Fluorination. Chondroitin sulfate A sodium salt can be custom synthesized according to customer specifications and can be ordered as a CAS No. 39455-18-0 with high purity.Purezza:Min. 95%Colore e forma:White Off-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.Colore e forma:PowderPeso molecolare:~100KDaWheat starch
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.Purezza:Min. 95%Colore e forma: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.Purezza:Min. 95%Colore e forma:White Yellow PowderIsolichenan
CAS:Isolichenan is a cold-water soluble (1,3)-(1,4)-α-D-glucan isolated from lichen Cetraria islandica to have MW of about 6-8 kDa. Lichens produce isolichenan-type polysaccharides with considerable variation in linkage ratios as well as MW, even within the same species. Occasionally these α-glucans can be branched at O2, O3 or O6. The immunomodulating activity of isolichenan was tested in in vitro phagocytosis and anti-complementary assays, and proved to be active in both cases.
The image was kindly provided by Prof Mike Guiry from Cork who runs ‘The Seaweed Site’.Purezza:Min. 85%Colore e forma:PowderCellulose, particle size 20μm
CAS:Cellulose with a particle size of 20μm is an industrial biomass material that has various applications. It is commonly used in the production of paper, textiles, and biofuels. Cellulose is a complex carbohydrate that provides structural support to plant cell walls. It can also be used as an excipient in pharmaceutical formulations, such as in the production of tablets.Purezza:Min. 95%Colore e forma:PowderGlycogen - from oyster for molecular biology
CAS:Glycogen is a highly branched polysaccharide of glucose that serves as a form of energy storage in animals and fungi. It is the main storage form of glucose in the body. In humans, glycogen is made and stored primarily in liver and muscle cells and functions as the second most important energy storage molecule to fat which is held in adipose tissue. Glycogen is analogous to starch and has a structure similar to amylopectin, but is more extensively branched and compact than starch. It occurs as granules in the cytosol/cytoplasm in many cell types, and plays an important role in the glucose cycle.
Purezza:Min. 95%Hydroxypropyl cellulose - Average MW 80,000
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.Purezza:Min. 95%Fluorescein isothiocyanate-dextran - Average MW 70,000
CAS:Anterograde and retrograde tracer in neurons; biologically inertPurezza:Min. 95%D-Aminogalacturonic Acid Hydrochloride
CAS:Prodotto controllatoApplications 2-Amino-2-deoxygalacturonic acid was a component of the lipopolysaccharide from P. aeruginosa NCTC 8505 and probably occurs in the region of polysaccharide responsible for O-antigenic specificity.
References Wilkinson, S.G., et al.: Biochem. J., 149, 783 (1975),Formula:C6H12ClNO6Colore e forma:NeatPeso molecolare:229.62Isomaltopentaose
CAS:Applications Isomaltopentaose, is an isomalto-oligosaccharides (IMO) compound, used as functional food ingredients.
References Hu, Y., et al.: Lett. App. Microbio., 57, 108 (2013);Formula:C30H52O26Colore e forma:NeatPeso molecolare:828.72Cellulose - Particle Size approx 50 um
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.Purezza:Min. 95%Colore e forma:PowderHydroxypropyl cellulose - Average MW 200,000
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.Colore e forma:PowderFluorescein isothiocyanate-carboxymethyl-dextran - Average MW 70,000
Fluorescein isothiocyanate carboxymethyl dextran (FITC-CM Dextran) has been reported to provide a valuable carrier for nanoparticles of iron oxide. These products provide a potent tool for contrast enhancement in magnetic resonance imaging.Purezza:Min. 95%Fluorescein isothiocyanate-carboxymethyl-dextran - Average MW 20,000
Fluorescein isothiocyanate carboxymethyl dextran (FITC-CM Dextran) has been reported to provide a valuable carrier for nanoparticles of iron oxide. These products provide a potent tool for contrast enhancement in magnetic resonance imaging.Purezza:Min. 95%(Hydroxypropyl)methyl cellulose - Viscocity 75000-140000 cP, 2 % in H2O
CAS:Viscoelastic polymer; excipient; food additivePurezza:Min. 95%Fluorescein isothiocyanate-dextran - Average MW 3,000-5,000
CAS:Fluorescein isothiocyanate dextran is a fluorescent derivative of a dextran fraction with an average molecular weight of approximately 4000. It is supplied as a yellow powder which is readily soluble in water.
Purezza:Min. 95%
