Polissacáridos
Foram encontrados 506 produtos de "Polissacáridos"
Cellulose acetate - MW 30,000
CAS:Cellulose acetate fiber is one of the earliest synthetic fibers and is based on cotton or tree pulp cellulose. Cellulose acetate is used as a film base in photography, as a component in some coatings, and as a frame material for eyeglasses. It is also used as a synthetic fiber in the manufacture of cigarette filters and playing cards. In photographic film, cellulose acetate replaced nitrate film in the 1950s, being far less flammable and cheaper to produce but in recent years has been rendered obsolete by the advent of digital cameras.Cor e Forma:PowderN-Trimethylchitosan
CAS:Quaternization of the primary amine in N-Trimethylchitosan increases the water solubility of chitosan and keeps chitosan soluble over a wide pH range. N-Trimethylchitosan is soluble in water and ethanol, making it ideal for use in biotechnology applications.The degree of quaternization is 30-70%Pureza:Min. 90%Pachyman - from Poria cocos
CAS:Poria cocos is an edible medicinal fungus known as “Fuling” in Chinese that has been used as a Chinese traditional medicine for more than two thousand years. Polysaccharide material is the most abundant organic substance in the fungus, accounting for about 85% of the total and is a mixture of polysaccharides with the major component being Pachyman, a β-glucan with a 1,3 backbone and 1,6 side chains. It is reported that Pachyman has a wide range of biological activities including antitumour, immunomodulatory, anti-inflammatory and antioxidative properties. Pachyman is a beta-glucan with a 1,3 backbone and 1,6 side chains of fungal origin (Poria cocos). The image was kindly provided by Dr. Chris Lawson.Pureza:Min. 95%Cor e Forma:White PowderWelan gum
CAS:Welan gum is a microbial polysaccharide produced by a species of Alcaligenes and shows interesting rheological properties of use in the oil and agricultural industries. The structure is similar to gellan based on repeating glucose, rhamnose and glucuronic acid units but with a single side chain of either an α-L-rhamnopyranosyl or an α-L-mannopyranosyl unit linked (1,3) to the 4-O-substituted β-D-glucopyranosyl unit in the backbone.Pureza:Viscosity >1700 CpCor e Forma:PowderFucoidan, Lessonia nigrescens
CAS:A fucan sulphate found in brown marine algae (Phaeophyta-typically Fucus vesiculotus, Ascophyllum nodosum, Alaria and Lessonia nigrescens (illustrated) 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. The image was kindly provided by Prof Mike Guiry from Cork who runs ‘The Seaweed Site’.Pureza:Min. 95%Cor e Forma:White Powderβ-1,3-Glucan
CAS:β-1,3-Glucan is a bioactive polysaccharide, which is located predominantly in the cell walls of yeast, fungi, and certain cereals. This compound is characterized by its unique branched structure, which is crucial for its biological function. The mode of action of β-1,3-Glucan involves the binding to specific receptors on immune cells, such as dectin-1, which triggers a cascade of immune responses. This interaction enhances the activity of macrophages, neutrophils, and natural killer cells, thus bolstering the body's innate immune defenses.The uses and applications of β-1,3-Glucan are broad, primarily focused on immunological research and potential therapeutic strategies. It is extensively utilized in studies examining its effects as an immunomodulator, leveraging its ability to potentiate immune system function and examining its role in adjunctive cancer therapies, where it may enhance the efficacy of certain treatments. Additionally, β-1,3-Glucan is investigated for its potential benefits in reducing infection rates and improving recovery times in clinical settings. Moreover, its applications in dietary supplements and functional foods continue to be a subject of scientific inquiry, aiming to harness its health-promoting properties within nutrition science.Pureza:Min. 95%Cor e Forma:Powder(Hydroxypropyl)methyl cellulose - USP, substitution type 2910 (viscosity 3000-5600mpa.s)
CAS:Viscoelastic polymer; excipient; food additiveDextran 20, MW: 17,000 to 23,000
CAS:Complex glucan (a 1-6) from Leuconostoc spp.; extender in blood transfusions
Cor e Forma:PowderDiethylaminoethyl-dextran
CAS:DEAE-Dextran (DEAE-D) is a positively-charged dextran derivative that can be used for vaccine production, gene therapy, protein stabilisation, dyslipidemia prevention, flocculating agents, and many other applications. DEAE-D is also used for transfecting animal cells with foreign DNA. DEAE-Sepharose, DEAE-650 and DEAE-Sephadex are commonly used in chromatography for the separation of biological molecules such as proteins and carbohydrates.Pureza:Min. 95%Porphyran
CAS:Porphyran is an agar-like polysaccharide with a linear backbone consisting of 3 linked β-D-galactosyl units alternating with either 4-linked α-L-galactosyl 6-sulphate or 3-6-anhydro-α-L-galactosyl units.The composition includes 6-O-sulphated L-galactose, 6-O-methylated D-galactose, L-galactose, 3,6-anhydro-L-galactose, 6-O-methyl D-galactose and ester sulphate. Some of the ester is present as 1,4-linked L-galactose 6-sulphate. The precise composition of porphyran shows seasonal and environmental variations. Porphyran is not used commercially, but the seaweed, Porphyra umbilicalis, is edible and is consumed in Wales (Laver). It is also made into a delicacy called Laverbread. The image was kindly provided by Prof Mike Guiry from Cork who runs ‘The Seaweed Site’.Pureza:(%) Min. 80%Cor e Forma:PowderLaminariheptaose
CAS:Ex algal/bacterial polysaccharides-value in b1-3 glucanase assays & diagnosticsFórmula:C42H72O36Pureza:Min. 95%Cor e Forma:PowderPeso molecular:1,153 g/molRef: IN-DA00ILJ6
Produto descontinuadoCellulose, carboxymethyl ether, sodium salt
CAS:Fórmula:C16H27NaO7Cor e Forma:SolidPeso molecular:354.3712Verbascose
CAS:Produto ControladoApplications Verbascose (CAS# 546-62-3) is an α-galactooligosaccharide with immunomodulatory activity in mouse macrophage RAW264.7 cells.
References Dai, Z.; et al.: J. Agric. Food. Chem., 66, 9070 (2018);Fórmula:C30H52O26Cor e Forma:NeatPeso molecular:828.72Dextran sulfate sodium - MW 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.
Cor e Forma:White PowderPeso molecular:8000.0Ref: 3D-YD59550
Produto descontinuadoXylan - from beechwood
CAS:Xylan is the most abundant noncellulosic polysaccharide present in both hardwoods and annual plants. Xylan is found mainly in the secondary cell wall as part of the hemicellulose fraction and is considered to form an interface between lignin and other polysaccharides. In their simplest forms, xylans are linear homopolymers of β-1,4-xylose residues but can also form complex heterogenous and polydispersed glycans.
Cor e Forma:Brown Slightly Brown PowderDextran 3 - MW 2500 - 4000
CAS:Dextran is α-(1,6)-linked α-D-glucan produced by fermentation of Leuconostoc mesenteroides via the action of the enzyme dextransucrase on sucrose. The main use for native dextran is as a blood plasma extender in blood transfusions. A complex of iron with dextran, known as iron dextran, is used as a source of iron to baby piglets which are often anaemic at birth.
Cor e Forma:White Off-White PowderRef: 3D-YD00049
Produto descontinuadob-D-glucan-from oat
CAS:Oat β-glucans are water-soluble β-glucans derived from the endosperm of oat kernels, which contain β-1,3 and β-1,4 linkages. They are known for cholesterol lowering and hypoglycemic properties, as well as their use in various cosmetic applications. Recent research has shown their potential application in immunomodulation and wound healing.
Pureza:Min. 90%Cor e Forma:White PowderRef: 3D-YO32420
Produto descontinuadoDermatan sulphate sodium
CAS:Dermatan sulphate is a glycosaminoglycan found in skin, blood vessels, heart valves, tendons, aorta, spleen and brain and is usually isolated from pig skin or beef lung tissue. The disaccharide repeat unit is composed of L-iduronic acid and N-acetyl-galactosamine-4-sulphate linked β-(1,3) and β-(1,4). There are also small amounts of D-glucuronic acid.
Cor e Forma:PowderPeso molecular:1,526.03 g/molRef: 3D-YD30120
Produto descontinuado
