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L8647

Sigma-Aldrich

Levan from Erwinia herbicola

≥98% (TLC)

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100 MG
MYR 217.00

About This Item

CAS Number:
9013-95-0
MDL number:
MFCD00131502
UNSPSC Code:
12352201
NACRES:
NA.25

MYR 217.00

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biological source

bacterial (Erwinia herbicola)

Quality Level

200

Assay

≥98% (TLC)

form

powder

technique(s)

thin layer chromatography (TLC): suitable

color

white

solubility

water: 9.80-10.20 mg/mL, cloudy to hazy, colorless to faintly yellow

storage temp.

2-8°C

SMILES string

O1[C@]([C@H]([C@@H]([C@H]1CO[C@@]3(O[C@@H]([C@H]([C@@H]3O)O)CO)CO)O)O)(OC[C@H]2O[C@]([C@H]([C@@H]2O)O)(O)CO)CO

InChI

1S/C18H32O16/c19-1-7-10(23)14(27)17(5-21,33-7)31-3-9-12(25)15(28)18(6-22,34-9)30-2-8-11(24)13(26)16(29,4-20)32-8/h7-15,19-29H,1-6H2/t7-,8-,9-,10-,11-,12-,13+,14+,15+,16-,17-,18-/m1/s1

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Show Differences

1 of 4

This Item
50949268909W368903
cis-3,7-Dimethyl-2,6-octadien-1-ol ≥97%, FCC, FG

W277002

cis-3,7-Dimethyl-2,6-octadien-1-ol

Nerol analytical standard

50949

Nerol

cis-3,7-Dimethyl-2,6-octadien-1-ol 97%

268909

cis-3,7-Dimethyl-2,6-octadien-1-ol

cis-3-Hexenyl cis-3-hexenoate ≥95%, stabilized, FG

W368903

cis-3-Hexenyl cis-3-hexenoate

organoleptic

fresh; citrus; floral; sweet

organoleptic

-

organoleptic

-

organoleptic

fresh; green; fruity; ethereal; pear

grade

FG, Halal, Fragrance grade, Kosher

grade

analytical standard

grade

-

grade

FG, Fragrance grade, Halal, Kosher

biological source

synthetic

biological source

-

biological source

-

biological source

synthetic

food allergen

no known allergens

food allergen

-

food allergen

-

food allergen

no known allergens

assay

≥97%

assay

≥97.0% (GC)

assay

97%

assay

≥95%

documentation

see Safety & Documentation for available documents

documentation

-

documentation

-

documentation

see Safety & Documentation for available documents

General description

Levan is a polysaccharide produced by some microorganisms and plants. It is a non-typical biopolymer composed of fructose units[1] linked by β-(2→6).[2] Levan is an exopolysaccharide (synthesized outside the cell).[1]

Application

Levan from Erwinia herbicola has been used as a:
  • standard for the nuclear magnetic resonance (NMR) spectroscopy analysis of levan produced by Bacillus licheniformis NS032 in sugar beet molasses-based medium[2]
  • polysaccharide substrate to test the ability of Prevotella copri isolates to grow when polysaccharides were provided as the sole carbon source in vitro[3]
  • substrate in levanase activity assay[4]

Biochem/physiol Actions

Levan has various industrial applications like cosmetics, medicine, or nanotechnology.[1] It might exhibit anti-hyperglycemic effect and anti-tumor action, prevent diabetes-induced oxidative stress and increase catalase (CAT) and superoxide dismutase (SOD) in the heart.[5] Levan is also recognized for its immunomodulating and prebiotic actions.[2]

Other Notes

A polymer of β-D-fructose
To gain a comprehensive understanding of our extensive range of Polysaccharides for your research, we encourage you to visit our Carbohydrates Category page.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves
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    12190406
    128M4082V
    12180750
    018M4104V

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    Tomoya Sasahara et al.
    iScience, 24(9), 102936-102936 (2021-08-31)
    Amyloid β-protein (Aβ) may contribute to worsening of Alzheimer's disease (AD) through vascular dysfunction, but the molecular mechanism involved is unknown. Using ex vivo blood vessels and primary endothelial cells from human brain microvessels, we show that patient-derived Aβ assemblies, termed

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