Carrageenan Suitable For Gel Preparation

Sinônimo(s):

Vegetable gelatin

Número CAS:

9000-07-1

Número CE:

232-524-2

Número MDL:

MFCD00081480

Código UNSPSC:

12352201

NACRES:

NA.25

fonte biológica

algae (red)

descrição

Predominantly κ and lesser amounts of λ carrageenan

forma

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

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.[1] As ι-, κ-, and λ- carrageenans have varying degrees of sulfation, they may be studied comparatively for differences in protective, antiviral, and immunosuppression activities.[1] 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.[2]

Nota de preparo

Blended from various seaweeds to produce rigid gels.