31421
Dextran from Leuconostoc mesenteroides
analytical standard, for GPC, Mw 80,000
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About This Item
Formula condensata:
(C6H10O5)n
Numero CAS:
Numero CE:
Numero MDL:
Codice UNSPSC:
12352201
NACRES:
NA.24
Prodotti consigliati
Grado
analytical standard
for GPC
Livello qualitativo
PM
Mn ~55,000
Mp ~65,000
Mw ~80,000
Classi chimiche degli analiti
oligosaccharides
tecniche
gel permeation chromatography (GPC): suitable
Mw/Mn
~1.45
applicazioni
food and beverages
Formato
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
FZWBNHMXJMCXLU-UHFFFAOYSA-N
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Descrizione generale
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: 80,000) may be used as an analytical standard to calibrate the column for gel permeation chromatography (GPC).
Dextran from Leuconostoc mesenteroides (Mw: 80,000) may be used as an analytical standard to calibrate the column for gel permeation chromatography (GPC).
Applicazioni
Dextran from Leuconostoc mesenteroides may be 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.
Codice della classe di stoccaggio
11 - Combustible Solids
Classe di pericolosità dell'acqua (WGK)
WGK 2
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
Dispositivi di protezione individuale
Eyeshields, Gloves, type N95 (US)
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