Garam asam alginat; alginat tertentu yang telah dipakai sebagai buih, bekuan, atau kasa sebagai pembalut di bagian bedah, dan alginat lainnya berguna sebagai bahan untuk membuat impresi dental.

Merriam-Webster Online Dictionary
alginate (noun)
a salt or ester of alginic acid
Alginate (Wikipedia)
Alginic acid
Other names
Alginic acid, E400
  • none
ECHA InfoCard 100.029.697
EC Number 232-680-1
E number E400 (thickeners, ...)
Molar mass 10,000 – 600,000
Appearance white to yellow, fibrous powder
Density 1.601 g/cm3
Acidity (pKa) 1.5–3.5
A02BX13 (WHO)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
Macrocystis pyrifera, the largest species of giant kelp

Alginic acid, also called algin or alginate, is an anionic polysaccharide distributed widely in the cell walls of brown algae, where through binding with water it forms a viscous gum. It is also a significant component of the biofilms produced by the bacterium Pseudomonas aeruginosa, the major pathogen in cystic fibrosis, that confer it a high resistance to antibiotics and killing by macrophages. Its colour ranges from white to yellowish-brown. It is sold in filamentous, granular or powdered forms.