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22048

κ-Carrageenan

Name: κ-Carrageenan
Brand: SIGMA

sulfated plant polysaccharide

Synonym(s):

Vegetable gelatin

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About This Item

CAS Number:

11114-20-8

UNSPSC Code:

12352201

NACRES:

NA.25

EC Number:

234-350-2

MDL number:

MFCD00151514

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biological source

plant

Quality Level

100

form

powder

color

white to off-white

viscosity

5-25 mPa.s, 0.3 % in H₂O(25 °C)

solubility

H₂O: soluble 5 mg/mL (hot)

SMILES string

[S](=O)(=O)([O-])O[C@H]1[C@H](O[C@H]([C@@H]([C@H]1O[C@H]4O[C@H]5[C@@H]([C@H](OC5)[C@H]4O)O[C@@H]6O[C@@H]([C@@H]([C@@H]([C@H]6O)O)O[S](=O)(=O)[O-])CO)O)O[C@@H]2[C@@H]3OC[C@H]2O[C@@H]([C@@H]3O)O)CO

InChI

1S/C24H38O25S2/c25-1-5-14(48-50(33,34)35)9(27)10(28)22(42-5)45-16-8-4-40-19(16)12(30)23(44-8)47-20-13(31)24(43-6(2-26)17(20)49-51(36,37)38)46-15-7-3-39-18(15)11(29)21(32)41-7/h5-32H,1-4H2,(H,33,34,35)(H,36,37,38)/p-2/t5-,6-,7-,8-,9-,10-,11-,12-,13-,14+,15+,16+,17+,18-,19-,20-,21+,22+,23-,24+/m1/s1

InChI key

ZNOZWUKQPJXOIG-XSBHQQIPSA-L

Related Categories

Biochemicals

Carbohydrates for Biochemical Research

Cell Culture Supplements & Reagents

Chemical Biology

General description

Carrageenans are mucopolysaccharides from the cell walls of the red algae. They are anionic linear polymers composed of 1,3α-1,4β-galactans having one (κ-), two (ι-) or three (λ-) sulfates per disaccharide unit. In ionic solutions, κ- and ι-carrageenans self-associate into helical structures that form rigid or flexible gels, respectively. λ-carrageenans do not form helices and are non-gelling. Carrageenans are used commercially as thickeners and stabilizing agents.

insoluble in hot concentrated salt solutions

Application

May be used in immobilization of microbial cells based on the growth of cell in gel

Carrageenans are used to suppress immune response in vivo and in vitro via mechanisms believed to involve selective cytopathic effect on macrophages. As ι-, κ-, and λ-carrageenans have varying degress of sulfation, they may be studied comparatively for differences in protective, antiviral, and immunosuppression activities.

Other Notes

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

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

植物油/植物胶产品

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Reinforcement of Refined and Semi-Refined Carrageenan Film with Nanocellulose.

Bakti B Sedayu et al.

Polymers, 12(5) (2020-05-21)

Carrageenans obtained from seaweeds can be processed into films for a range of applications including food packaging. The level of carrageenan refinement during extraction can influence the key properties, with semi-refined carrageenan (SRC) containing more impurities than the more refined

Immobilization of cells in carrageenan.

I Chibata et al.

Methods in enzymology, 135, 189-198 (1987-01-01)

Optimized Preparation of Levofloxacin Loaded Polymeric Nanoparticles.

Manuel López-López et al.

Pharmaceutics, 11(2) (2019-02-02)

In this work, poly(lactic-co-glycolic acid) (PLGA) and chitosan (CS) nanoparticles were synthesized with the purpose of encapsulating levofloxacin (LEV). A thorough study has been carried out in order to optimize the preparation of LEV-loaded polymeric nanoparticles (NPs) suitable for parenteral

The hydrophobic modification of kappa carrageenan microgel particles for the stabilisation of foams.

A L Ellis et al.

Journal of colloid and interface science, 538, 165-173 (2018-12-05)

Polysaccharides such as kappa carrageenan are often utilised in fat replacement techniques in the food industry. However, the structural role they can provide within a product is limited by their hydrophilic nature. Hydrophilic particles can be surface-activated by hydrophobic modification

M. Wada et al.

Europ. J. Appl. Microbiol. Biotechnol., 8, 241-241 (1979)

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Global Trade Item Number

SKU	GTIN
22048-25G-F	04061838776440
22048-100G-F	04061838776433

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