31425

Dextrano from Leuconostoc mesenteroides

analytical standard, for GPC, Mw 670,000

• Fórmula lineal: (C₆H₁₀O₅)_n
• Número de CAS: 9004-54-0
• EC Number: 232-677-5
• MDL number: MFCD00130935
• UNSPSC Code: 12352201
• NACRES: NA.24

Propiedades

• grade: analytical standard; for GPC
• Quality Level: 100
• mol wt: M_n ~330,000; M_p ~400,000; M_w ~670,000
• analyte chemical class(es): oligosaccharides
• technique(s): gel permeation chromatography (GPC): suitable
• Mw/Mn: ~2.03
• 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

Descripción

General description

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: 670,000) may be used as an analytical standard to calibrate the column for gel permeation chromatography (GPC).

Application

El uso de dextranos como brazos espaciadores largos e hidrófilos mejora el rendimiento de las proteínas inmovilizadas que actúan sobre las macromoléculas.

Información de seguridad

• 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)