00894
Dextran
analytical standard, 270,000
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A propos de cet article
Formule linéaire :
[C6H10O5]n
Numéro CAS:
NACRES:
NA.24
UNSPSC Code:
12352201
EC Number:
232-677-5
MDL number:
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Laissez-nous vous aiderInChI 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
grade
analytical standard
form
powder or crystals
analyte chemical class(es)
oligosaccharides
Quality Level
Mw/Mn
~1.66
application(s)
food and beverages
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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.
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)
Packaging
Bottomless glass bottle. Contents are inside inserted fused cone.
Classe de stockage
11 - Combustible Solids
ppe
Eyeshields, Gloves, type N95 (US)
flash_point_f
Not applicable
flash_point_c
Not applicable
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Functional polymers based on dextran
Polysaccharide-based Fibers and Composites: Chemical and Engineering Fundamentals and Industrial Applications, 199-291 (2006)
Dextran?the polysaccharide with versatile uses
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This study aims to determine the in vivo effectiveness of low-frequency ultrasound in mediating the transport of macromolecules to the posterior segment of the eye via transscleral route. It investigates if damage is caused by ultrasound at the tested operation
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