| Customization: | Available |
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| CAS No.: | 9005-38-3 |
| Formula: | N/a |
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Sodium Alginate (CAS number 9005-38-3) is a naturally occurring polysaccharide extracted from brown seaweed, including species like Laminaria hyperborea, Laminaria digitata, Macrocystis pyrifera, and others. It is composed of two monomeric units, β-D-mannuronic acid (M) and α-L-guluronic acid (G), which form blocks that can be arranged in sequential, alternating, or random patterns, influencing the physical and chemical properties of the alginate .
Sodium alginate is used in a wide range of applications due to its unique properties. In the food industry, it is commonly used as a stabilizer, thickener, and emulsifier. It is also used in medical applications, particularly in drug delivery systems and tissue engineering, because of its biocompatibility and ability to form gels in the presence of divalent cations like calcium ions. The gelling properties of sodium alginate make it useful in creating hydrogels for cell encapsulation and as a scaffold material in tissue engineering .
In pharmaceuticals, sodium alginate is utilized for its ability to form gels with controlled release properties, which can be beneficial in drug delivery applications. It is also used in the production of wound dressings because of its porosity and ability to absorb exudate .
The molecular weight of commercial sodium alginate typically ranges from 60,000 to 700,000 Daltons, and its properties can vary based on factors such as the source of the algae, the season, and the location where the algae are harvested. These factors can affect the solubility, viscosity, and gel-forming properties of the alginate .
In summary, sodium alginate is a versatile biopolymer with a broad range of applications in the food, pharmaceutical, biomedical, and environmental industries, owing to its unique physicochemical properties and biocompatibility.
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