K-Carrageenan Sulfated Plant Polysaccharide

Sinônimo(s):

Vegetable gelatin

Número CAS:

11114-20-8

Número CE:

234-350-2

Número MDL:

MFCD00151514

Código UNSPSC:

12352201

NACRES:

NA.25

fonte biológica

plant

forma

powder

cor

white to off-white

viscosidade

5-25 mPa.s, 0.3 % in H₂O(25 °C)

solubilidade

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

chave InChI

ZNOZWUKQPJXOIG-XSBHQQIPSA-L

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.

insoluble in hot concentrated salt solutions

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.

May be used in immobilization of microbial cells based on the growth of cell in gel[1][2]