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Documentos Principais

C1013

Sigma-Aldrich

Carrageenan

suitable for gel preparation

Sinônimo(s):

Vegetable gelatin

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About This Item

Número CAS:
Número CE:
Número MDL:
Código UNSPSC:
12352201
NACRES:
NA.25

fonte biológica

algae (red)

Nível de qualidade

descrição

Predominantly κ and lesser amounts of λ carrageenan

Formulário

powder

cor

white to light brown

faixa de pH útil

7.5-10.5 (1.5% in water)

traços de cátion

Ca: <3.5%
K: <11%
Na: <2.0%

adequação

suitable for gel preparation

temperatura de armazenamento

room temp

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Descrição geral

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.

Aplicação

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.
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 degrees of sulfation, they may be studied comparatively for differences in protective, antiviral, and immunosuppression activities. Carrageenan may be used in the development of biomaterials such as bone graft substitutes; entrapping vessels such as biobeads and encapsulation vehicles for drug delivery. Carrageenan be used to develop hydrogels.

Nota de preparo

Blended from various seaweeds to produce rigid gels.

Outras 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 classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)


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