Häder DP (2020)
Publication Type: Book chapter / Article in edited volumes
Publication year: 2020
Publisher: Elsevier
Edited Volumes: Natural Bioactive Compounds: Technological Advancements
ISBN: 9780128206553
DOI: 10.1016/B978-0-12-820655-3.00009-4
Macroalgae have long been utilized as food, animal fodder, fertilizer, and burning material. In recent years, further uses of phycocolloids as gelling agents in medicine and technology have been added. Alginic acid, also called algin or alginate, is extracted from a variety of brown algae, such as Fucus, Macrocystis, Ascophyllum, Sargassum, and Laminaria species. The high-molecular-weight compounds consist of 1-4-linked β-d-mannuronate and α-l-guluronate residues in different proportions. Agar (agar-agar) is extracted from a number of red algae including Gigartina, Gracilaria, Hypnea, Sphaerococcus, Acanthopeltis, Ceramium, and Gloiopeltis species. It is a family of heterogeneous polysaccharides that consist of a mixture of agarose and agaropectin. Carrageenan is a collection of long-chained carbohydrates extracted from rhodophytes. These compounds are linear anionic hydrocolloids that differ in their amount of galactose and 3, 6-anhydrogalactose as well as the number of sulfate groups Three types are of commercial importance: κ-carrageenan, ι-carrageenan, and λ-carrageenan extracted from Chondrus, Eucheuma, and Gigartina species.
APA:
Häder, D.-P. (2020). Phycocolloids from macroalgae. In Rajeshwar p. Sinha, Donat-P Häder (Eds.), Natural Bioactive Compounds: Technological Advancements. Elsevier.
MLA:
Häder, Donat-Peter. "Phycocolloids from macroalgae." Natural Bioactive Compounds: Technological Advancements. Ed. Rajeshwar p. Sinha, Donat-P Häder, Elsevier, 2020.
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