Algins brown seaweed

Carrageenans Red seaweeds (Eucheutna, Chondrus, Hypnea, Gigartina) Alginate Brown seaweeds (Macrocystis, Laminaria, Ascophyllum)... 

SOURCES OF ALGINATES (Brown Seaweeds) (all contents are based on d.m.) ... 

Algin occurs in all members of the class Phaeophjceae, brown seaweed, as a stmctural component of the cell walls in the form of the insoluble mixed calcium, magnesium, sodium, and potassium salt of alginic acid. 

These materials are another polysaccharide. The name derives from its original source, brown algae. The current commercial sources are brown seaweeds such as Laminaria digitata, L. hyperborea, Ascophyllium nodosum and Fucus serratus. Different properties are obtained in alginates from different seaweeds. The sources are rocky coasts in the United States, the United Kingdom, France and Norway. 

Alginates, unique hydrocolloids extracted from selected species of brown seaweed (kelp), interact with calcium ions to produce thermally stable gels. Using this interaction, flavor oils may be encapsulated or entrapped in the algin gel matrix. Encapsulation is accomplished at ambient temperatures. Products may be used "as is" (wet) or subsequently dried. This technique offers the potential for novel flavor effects, flavor protection, and new food products. 

Alginate Irreversible gelling agent Polysaccharide Brown seaweeds... 

King, A.H. (1983). Brown seaweeds extracts (alginates). In M. Glicksman (ed). Food Hydrocolloids. Boca Raton, FL, pp. 115-188. 

Alginates are found primarily in brown seaweeds in amounts of 18—40% by weight of the plant. The majority is extracellular, being located between the cells [94]. One of the major species of seaweeds that contains alginates is the giant kelp, Macrocyctis pyrifera. It grows along the California coast of the US, the northwestern and southwestern coasts of South America, and the southeastern coasts of Australia and New Zealand [95]. 

Alginic acid is a hydrophilic colloid carbohydrate that occurs naturally in the cell walls and intercellular spaces of various species of brown seaweed (Phaeophyceae). The seaweed occurs widely throughout the world and is harvested, crushed, and treated with dilute alkali to extract the alginic acid. 

Alginate obtained from brown seaweed is subjected to demineralization, extraction, and precipitation of alginic acid. Following neutralization, the potassium alginate obtained is dried and milled. 

Alginic acid is extracted from brown seaweed and is neutralized with sodium bicarbonate to form sodium alginate. 

Derivation Extracted from brown seaweeds (alginic acid). 

Alginate production by fermentation is technically feasible, but so far has not reached economical significance [2]. Industrially, alginates are only extracted from marine brown seaweeds (alginophytes) such as Macrocystis sp. (giant kelp), Les-sonia sp., Durvillaea sp.. Laminaria sp., and Ecklonia sp. 

Further simplification of the process used to make oUgoalginates was developed directly from dried or fresh brown seaweeds as the starting materials instead of alginates. A new process was then implemented to produce various oUgoman-nuronate mixtures from seaweeds [6] oligosaccharide mixtures composed of... 

Alginate is a gelling polysaccharide found in great abundance as part of the cell wall and intracellular material in the brown seaweeds (Phaeophyceae). Most of the alginate used commercially is obtained from Macrocystis, Laminaria, and Ascophyllum [137]. Recently, Azotobacter vinelandii, a nitrogen-fixing bacterium... 

---