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I-Carrageenan - 100 Gr - Sigma

Código: 21858

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I-Carrageenan commercial grade, Predominantly iota carrageenan

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Sinônimo(s):

Vegetable gelatin

Número CAS:

9062-07-1

Número CE:

232-949-3

Número MDL:

MFCD00151512

Código UNSPSC:

12352201

NACRES:

NA.25

fonte biológica

algae (Eucheuma spinosum)

grau

commercial grade

forma

powder

cor

beige

faixa de pH útil

8.0 - 10.5

solubilidade

water: soluble ~5 g/L

temperatura de armazenamento

room temp

InChI

1S/C24H38O31S4/c25-1-5-12(52-56(31,32)33)9(27)10(28)22(46-5)49-14-8-4-44-18(14)20(55-59(40,41)42)24(48-8)51-16-11(29)23(47-6(2-26)15(16)53-57(34,35)36)50-13-7-3-43-17(13)19(21(30)45-7)54-58(37,38)39/h5-30H,1-4H2,(H,31,32,33)(H,34,35,36)(H,37,38,39)(H,40,41,42)/p-4/t5-,6-,7-,8-,9-,10-,11-,12+,13+,14+,15+,16-,17+,18+,19-,20-,21+,22+,23+,24-/m1/s1

chave InChI

QIDSWKFAPCTSKL-RRQHLKGPSA-J

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.[2] ι-Carrageenan may be used to help define the role of carrageenan sulfation levels in physicochemical, biochemical, biological and pharmacological responses.

Nota de preparo

Blended from various seaweeds to produce flexible gels.

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