D8821
Dextran from Leuconostoc mesenteroides
average mol wt 60,000-76,000
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About This Item
Wzór liniowy:
(C6H10O5)n
Numer CAS:
Numer WE:
Numer MDL:
Kod UNSPSC:
12352201
NACRES:
NA.25
Polecane produkty
pochodzenie biologiczne
bacterial (Leuconostoc mesenteroides)
Poziom jakości
Formularz
powder
aktywność optyczna
[α]20/D 190 to 201 °, c = 2% (w/v) in water
masa cząsteczkowa
average mol wt 60,000-76,000
kolor
white to off-white
mp
483 °C ((901 °F ))
rozpuszczalność
water: 100 mg/mL at 25 °C, colorless to faintly yellow
temp. przechowywania
2-8°C
ciąg SMILES
O1C(C(C(C(C1CO)O)O)O)OCC2OC(C(C(C2O)O)O)OCC(O)C(O)C(O)C(O)C=O
InChI
1S/C18H32O16/c19-1-5(21)9(23)10(24)6(22)3-31-17-16(30)14(28)12(26)8(34-17)4-32-18-15(29)13(27)11(25)7(2-20)33-18/h1,5-18,20-30H,2-4H2
Klucz InChI
FZWBNHMXJMCXLU-UHFFFAOYSA-N
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Opis ogólny
Dextran is an extracellular bacterial polymer of D-glucopyranose. It consists of α-(1→6) linkage in the main chain with a variable amount of α-(1→2), α-(1→3), α-(1→4) branched linkages. Dextran from L. mesenteroides B512F comprises 95% of α- (1→6) linkages and 5% of α-(1→3) branch linkages. Insoluble dextran from L. mesenteroides 1299 contains 63% α-(1→6), 27% of α-(1→2) and 8% of α-(1→3) linkages.
Zastosowanie
Dextran from Leuconostoc mesenteroides has been used:
- in resuspension of pellets and in Hanks′ balanced salt solution (HBSS) for the isolation of vascular nuclei from frozen post-mortem brain tissue
- to prepare dextran solution in phosphate buffer saline and to maintain corneal hydration and restore corneal thickness to physiological levels of human eyes
- as a polymer solution in the in situ aqueous two-phase systems (ATPS) formation with lysozyme PEGylation reaction
Use of dextrans as long and hydrophilic spacer arms improves the performance of immobilized proteins acting on macromolecules.
Działania biochem./fizjol.
Dextran is commercially available as a drug, especially as a blood plasma volume expander. This bacterial polysaccharide has several applications, such as adjuvant, emulsifier, carrier, and stabilizer in the food, pharmaceutical, and chemical industries. Dextran is used in the thickening of jam and ice cream in the food industry. It prevents sugar crystallization and retains moisture. This helps in preserving the flavor and appearance of several food items.
Inne uwagi
To gain a comprehensive understanding of our extensive range of Dextrans for your research, we encourage you to visit our Carbohydrates Category page.
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Kod klasy składowania
11 - Combustible Solids
Klasa zagrożenia wodnego (WGK)
WGK 2
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