31423
葡聚糖 来源于肠系膜明串珠菌
suitable for gel permeation chromatography (GPC), Mw 270,000
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关于此项目
线性分子式:
(C6H10O5)n
化学文摘社编号:
NACRES:
NA.24
UNSPSC Code:
12352201
EC Number:
232-677-5
MDL number:
InChI key
FZWBNHMXJMCXLU-UHFFFAOYSA-N
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
mol wt
Mn ~165,000, Mp ~195,000, Mw ~270,000
analyte chemical class(es)
oligosaccharides
technique(s)
gel permeation chromatography (GPC): suitable
Mw/Mn
~1.64
application(s)
food and beverages
format
neat
Quality Level
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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: 270,000) may be used as an analytical standard to calibrate the column for gel permeation chromatography (GPC).
Dextran from Leuconostoc mesenteroides (Mw: 270,000) may be used as an analytical standard to calibrate the column for gel permeation chromatography (GPC).
Application
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。
存储类别
11 - Combustible Solids
ppe
Eyeshields, Gloves, type N95 (US)
flash_point_f
Not applicable
flash_point_c
Not applicable
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