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Supelco

Dextran from Leuconostoc mesenteroides

analytical standard, for GPC, Mw 25,000

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Linear Formula:
(C6H10O5)n
CAS Number:
EC Number:
MDL number:
NACRES:
NA.24

grade

analytical standard
for GPC

Quality Level

mol wt

Mn ~20,000
Mp ~20,000
Mw ~25,000

analyte chemical class(es)

oligosaccharides

technique(s)

gel permeation chromatography (GPC): suitable

Mw/Mn

~1.25

application(s)

food and beverages

format

neat

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

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314163141831420
grade

analytical standard

grade

analytical standard, for GPC

grade

analytical standard, for GPC

grade

analytical standard, for GPC

mol wt

Mn ~20,000

mol wt

Mn ~1,000, Mp ~1,100, Mw ~1,300

mol wt

Mn ~8,000, Mp ~10,000, Mw ~12,000

mol wt

Mn ~35,000, Mp ~45,000, Mw ~50,000

analyte chemical class(es)

oligosaccharides

analyte chemical class(es)

oligosaccharides

analyte chemical class(es)

oligosaccharides

analyte chemical class(es)

oligosaccharides

technique(s)

gel permeation chromatography (GPC): suitable

technique(s)

gel permeation chromatography (GPC): suitable

technique(s)

gel permeation chromatography (GPC): suitable

technique(s)

gel permeation chromatography (GPC): suitable

Mw/Mn

~1.25

Mw/Mn

~1.30

Mw/Mn

~1.50

Mw/Mn

~1.43

General description

Dextran is a D-glucosyl homopolysaccharide which has a-1,6 glucosidic linkages with different branches through α-1,2, α-1,3, and α-1,4 linkages correspondingly classified as group A, B and C. It can be synthesized from sucrose by cell-free filtrate.
Dextrans are polysaccharides with molecular weights ≥1,000 Dalton, with a linear backbone of α-linked D-glucopyranosyl repeating units. Dextrans are found as bacterial extracellular polysaccharides. They are synthesized from sucrose by Leuconostoc mesenteroides and Lactobacillus brevis. Bacteria employ dextran in biofilm formation or as a protective coating to evade host phagocytes in the case of pathogenic bacteria.
Dextran from Leuconostoc mesenteroides (Mw: 25,000) may be used as an analytical standard to calibrate the column for gel permeation chromatography (GPC).

Application

Markers-dextran with 25000 Da has been used as standard in gel chromatography analysis to determine fractional composition of protein, carbohydrate, phenolic surface active substances in base wine.
Use of dextrans as long and hydrophilic spacer arms improves the performance of immobilized proteins acting on macromolecules.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Related Content

Learn about C6H10O6 or dextran formation, classes and naming. Dextrans are polysaccharides with molecular weights ≥1,000 Dalton, which have a linear backbone of α-linked d-glucopyranosyl repeating units.

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