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A7003

Sigma-Aldrich

Alginic acid from brown algae

powder

Sinonimo/i:

Alginic acid from Macrocystis pyrifera (kelp), Mixed polymer of mannuronic and guluronic acid

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About This Item

Formula condensata:
(C6H8O6)n
Numero CAS:
9005-32-7
Numero CE:
232-680-1
Numero MDL:
MFCD00081309
Codice UNSPSC:
12171500
NACRES:
NA.47

Stato

powder

Livello qualitativo

200

tecniche

titration: suitable

Colore

white to light yellow

Intervallo di pH

1.5-3.5

Punto di fusione

300 °C

Solubilità

H2O: insoluble, but swells
aqueous base: soluble

applicazioni

diagnostic assay manufacturing
hematology
histology

Temperatura di conservazione

room temp

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Categorie correlate

Descrizione generale

Alginic acid is a high molecular weight linear polymer isolated from seaweed. It is a linear β-1→4-linked polymer of n-mannuronic and L-guluronic acid. It is an acid polysaccharide present in the extracellular matrix of brown algae. It is reported to inhibit the reverse transcriptase activity of HIV. Structural investigation of alginic acid, a marine algal polysaccharide poly-α-L-guluronic acid, has been reported. Anti-inflammatory effect of alginic acid, isolated from the brown algae Sargassum wightii, in type II collagen induced arthritic rats has been reported. Pyrolysis of alginic acid using py-GC/MS over a wide temperature range (200-800°C) and thermogravimetric analysis (TGA) has been reported. It was reported to cause the biocorrosion of thin films of copper on germanium internal reflection elements (IREs).

Applicazioni

Alginic acid is suitable reagent used to study the in-vitro and in-vivo mitogenic activity of alginates. It is suitable for use in the spectrophotometric determination of transparent exopolymer particles by dye-binding assay.

Altre note

A straight-chain, hydrophilic, colloidal, polyuronic acid composed primarily of anhydro-β-D-mannuronic acid residues with 1→4 linkage.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)

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Certificati d'analisi (COA)

Lot/Batch Number
SLCH8643
SLCH8642
SLCH4114
SLCF5542
SLCC0721

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In situ, real-time FT-IR/CIR/ATR study of the biocorrosion of copper by gum arabic, alginic acid, bacterial culture supernatant and Pseudomonas atlantica exopolymer.
Jolley JG, et al.
Applied Spectroscopy, 43(6), 1062-1067 (1989)
A dye-binding assay for the spectrophotometric measurement of transparent exopolymer particles (TEP).
Passow U and Alldredge AL.
Limnology and Oceanography, 40(7), 1326-1335 (1995)
C H Sarithakumari et al.
International immunopharmacology, 17(4), 1108-1115 (2014-01-22)
The present study evaluated the anti-inflammatory potential of alginic acid isolated from the brown algae Sargassum wightii in type II collagen induced arthritic rats, a well established arthritic model that resembles more closely to human rheumatoid arthritis in its clinical
Structural components of alginic acid. II. The crystalline structure of poly-alpha-L-guluronic acid. Results of x-ray diffraction and polarized infrared studies.
E D Atkins et al.
Biopolymers, 12(8), 1879-1887 (1973-01-01)
Pyrolysis behaviour of the main carbohydrates of brown macro-algae.
Anastasakis K, et al.
Fuel: The Science and Technology of Fuel and Energy, 90(2), 598-607 (2011)
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