00892
Dextran
analytical standard, 80,000
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Fórmula lineal:
[C6H10O5]n
Número CAS:
NACRES:
NA.24
UNSPSC Code:
12352201
EC Number:
232-677-5
MDL number:
Servicio técnico
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analytical standard
Quality Level
form
powder or crystals
analyte chemical class(es)
oligosaccharides
technique(s)
gel permeation chromatography (GPC): suitable
Mw/Mn
~1.46
application(s)
food and beverages
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
InChI key
FZWBNHMXJMCXLU-UHFFFAOYSA-N
General description
Dextran (mol. wt. 80,000) belongs to the family of neutral polysaccharides, which are recognized as contaminants in sugar processing and other food production industries. These are composed of chains of D-glucose units connected by alpha-(1-6) linkages of varying lengths. They are found as bacterial extracellular polysaccharides and reportedly synthesized from sucrose by beneficial lactic acid bacteria, such as Leuconostoc mesenteroides and Lactobacillus brevis. They are incorporated in bakery products to improve the crumb texture, softness, and loaf volume, as stabilizers and additives in confectionery, flavor extract, icing compositions, beverages including soft drinks, milk, etc.
Application
Dextran has been used as a polymer standard in the quantitative determination of intracellular sodium [Na+] using fluorescence lifetime imaging microscopy (FLIM) with CoroNaGreen dye. It has also been used in combination with concanavalin A as concanavalin A-dextran affinity assay employed in osmotic glucose sensor for the characterization of commercial nanoporous membranes.
Packaging
Bottomless glass bottle. Contents are inside inserted fused cone.
Clase de almacenamiento
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Functional polymers based on dextran
Polysaccharide-based Fibers and Composites: Chemical and Engineering Fundamentals and Industrial Applications, 376(1-2), 199-291 (2006)
Quantitative determination of cellular [Na+] by fluorescence lifetime imaging with CoroNaGreen
Meyer J, et al.
The Journal of General Physiology, 151(11), 1319-1331 (2019)
Characterization of nanoporous membranes for implementation in an osmotic glucose sensor based on the concanavalin A--dextran affinity assay
Krushinitskaya O, et al.
Journal of Membrane Science , 376(1-2), 153-161 (2011)