31419

デキストラン from Leuconostoc mesenteroides

analytical standard, for GPC, Mw 25,000

• 化学式: (C₆H₁₀O₅)_n
• CAS番号: 9004-54-0
• EC Number: 232-677-5
• MDL番号: MFCD00130935
• UNSPSCコード: 12352201
• NACRES: NA.24

特性

• グレード: analytical standard; for GPC
• 品質水準: 100
• 分子量: M_n ~20,000; M_p ~20,000; M_w ~25,000
• アナライトの化学物質クラス: oligosaccharides
• テクニック: gel permeation chromatography (GPC): suitable
• Mw/Mn: ~1.25
• アプリケーション: food and beverages
• フォーマット: 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

詳細

詳細

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).

アプリケーション

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.

デキストランを親水性の長鎖スペ-サ-ア-ムとして使用することで、高分子に作用する固定化タンパク質の性能を向上することができます。

安全性情報

• 保管分類コード: 11 - Combustible Solids
• WGK: WGK 2
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable
• 個人用保護具 (PPE): Eyeshields, Gloves, type N95 (US)