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71238 Sigma-Aldrich

Alginic acid sodium salt from brown algae

BioReagent, suitable for immobilization of micro-organisms

Synonym: Algin, Sodium alginate

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Properties

Related Categories Biochemicals and Reagents, Carbohydrates, Polysaccharide More...
Quality Level   100
biological source   algae (brown)
product line   BioReagent
form   powder
ign. residue   ≤30%
loss   ≤15% loss on drying
pH   6.0-8.0 (10 mg/mL in H2O)
suitability   in accordance for gelation test
  suitable for immobilization of micro-organisms
storage temp.   room temp

Description

Application

Alginate, a colloidal polyuronic acid structural molecule capable of gelation, is used in the preparation of colloidal biodegradable structures such as gels, biofilms, beads, nanoparticles, and microcapsules suitable for applications that range from gel based separation technologies to drug delivery and cell preservation.

Other Notes

A straight-chain, hydrophilic, colloidal, polyuronic acid composed of glucuronic and mannuronic acid residues.

Immobilization of cells; or enzymes; the alginate matrix can be liquefied by the addition of a chelating agent, making possible the recovery of developing colonies without affecting their continued growth.

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 1
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles
Peer-Reviewed Papers
15

References

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