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Dextran from Leuconostoc mesenteroides

葡聚糖 来源于肠系膜明串珠菌

品牌
Supelco
CAS
9004-54-0
货号
31419
规格纯度
analytical standard, for GPC, Mw 25,000
参考价格
1630.36 *本价格含增值税费
促销
数量
-+
产品介绍:

产品说明

一般描述

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).
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.

应用

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.
将右旋糖酐用作长的亲水性间隔臂提高了作用于大分子的固定化蛋白质的性能。

基本信息

线性分子式(C6H10O5)n
EC 号232-677-5
MDL编号MFCD00130935
NACRESNA.24

产品性质

等级analytical standard
for GPC
质量水平100
分子量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
格式neat

安全信息

储存分类代码13 - Non Combustible Solids
WGKWGK 2
闪点(F)Not applicable
闪点(C)Not applicable
个人防护装备Eyeshields, Gloves, type N95 (US)

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