Dextran

SIAL/00894 - analytical standard, for GPC, 270,000

CAS Number: 9004-54-0
EC Number: 232-677-5
MDL Number: MFCD00130935
Linear Formula: [C₆H₁₀O₅]_n
Product Type: Chemical

Catalog Number	PKG Qty.	Price	Quantity


45-00894-100MG	100 mg	$287.00 1/EA		Add To Favorites
45-00894-500MG	500 mg	$699.00 1/EA		Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

analyte chemical class(es)	oligosaccharides
application(s)	food and beverages
form	powder or crystals
grade	analytical standard
	for GPC
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
M_w/M_n	~1.66
mol wt	M_n ~164200
	M_p ~196,300
	M_w ~273,000
Quality Level	100
technique(s)	gel permeation chromatography (GPC): suitable

Application:	The analytical standards can also be used as follows:• High-performance size exclusion chromatography (HPSEC) based determination of the molecular weight of a dextran synthesized by Leuconostoc citreum B-2, isolated from a fermentation product of pineapple • Determination of molecular weight of polysaccharides obtained from four Auricularia species by high-performance liquid chromatography using a water-soluble gel column • Identification of molecular weight of a water-soluble polysaccharide isolated by anion exchange chromatography from the dried leaves of C. paliurus by gel permeation chromatography (GPC) • Gel permeation chromatography (GPC) based molecular weight measurement of a dextran produced by two strains of Leuconostoc mesenteroides • Estimation of molecular weight of a water-soluble polysaccharide obtained from thinned-young apple by high-performance size exclusion chromatography (HPSEC)
General description:	Dextran (mol. wt. 270,000) belongs to the family of neutral polysaccharides, which are recognized as contaminants in sugar processing and other food production industries. These are composed of chains of D-glucose units connected by alpha-(1-6) linkages of varying lengths. They are found as bacterial extracellular polysaccharides and reportedly synthesized from sucrose by beneficial lactic acid bacteria, such as Leuconostoc mesenteroides and Lactobacillus brevis. They are incorporated in bakery products to improve the crumb texture, softness, and loaf volume, as stabilizers and additives in confectionery, flavor extract, icing compositions, beverages including soft drinks, milk, etc.
Packaging:	Bottomless glass bottle. Contents are inside inserted fused cone.

RIDADR	NONH for all modes of transport
WGK Germany	WGK 2

UNSPSC

12352201

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