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Merck
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22048

Sigma-Aldrich

κ-Carrageenan

sulfated plant polysaccharide

Sinónimos:

Vegetable gelatin

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About This Item

Número de CAS:
11114-20-8
Número CE:
234-350-2
Número MDL:
MFCD00151514
Código UNSPSC:
12352201
NACRES:
NA.25

origen biológico

plant

formulario

powder

color

white to off-white

viscosidad

5-25 mPa.s, 0.3 % in H2O(25 °C)

solubilidad

H2O: soluble 5 mg/mL (hot)

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

Clave InChI

ZNOZWUKQPJXOIG-XSBHQQIPSA-L

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Descripción general

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

Aplicación

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

Otras notas

To gain a comprehensive understanding of our extensive range of Polysaccharides for your research, we encourage you to visit our Carbohydrates Category page.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 2

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Immobilization of cells in carrageenan.
I Chibata et al.
Methods in enzymology, 135, 189-198 (1987-01-01)
M. Wada et al.
Europ. J. Appl. Microbiol. Biotechnol., 8, 241-241 (1979)
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
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
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
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