Cited by 369Polysaccharides Composition and ApplicationsSeaweed-derived Bioactive CompoundsPolysaccharides and Plant Cell Walls

Polysaccharides of the red algae

Usov, Anatolii I.·2011·Advances in carbohydrate chemistry and biochemistry

Abstract

Red algae (Rhodophyta) are known as the source of unique sulfated galactans, such as agar, agarose, and carrageenans. The wide practical uses of these polysaccharides are based on their ability to form strong gels in aqueous solutions. Gelling polysaccharides usually have molecules built up of repeating disaccharide units with a regular distribution of sulfate groups, but most of the red algal species contain more complex galactans devoid of gelling ability because of various deviations from the regular structure. Moreover, several red algae may contain sulfated mannans or neutral xylans instead of sulfated galactans as the main structural polysaccharides. This chapter is devoted to a description of the structural diversity of polysaccharides found in the red algae, with special emphasis on the methods of structural analysis of sulfated galactans. In addition to the structural information, some data on the possible use of red algal polysaccharides as biologically active polymers or as taxonomic markers are briefly discussed.

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Crossref · 10.1016/b978-0-12-385520-6.00004-2

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  • Sulfated galactans such as agar, agarose, and carrageenans usually contain repeating disaccharides of β-(1→3)-linked and α-(1→4)-linked galactopyranosyl residues.

    “Sulfated galactans such as agar, agarose and carrageenans usually contain repeating disaccharides of β-(1→3)-linked and α-(1→4)-linked galactopyranosyl (Galp) residues.”

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Authors
Usov, A. I.
Affiliations
N.D. Zelinsky Institute of Organic Chemistry (RU)
Corresponding author
Usov, Anatolii I.
Venue
Advances in carbohydrate chemistry and biochemistry
Publisher
Elsevier
Published
2011
Volume
65
Pages
115-217
ISSN
0065-2318 (ISSN-L)
OpenAlex
W17843683
Cited by
369
References
703
Citations by year
2026: 24 · 2025: 41 · 2024: 31 · 2023: 36 · 2022: 31 · 2021: 36 · 2020: 35 · 2019: 28 · 2018: 20 · 2017: 21 · 2016: 11 · 2015: 19 · 2014: 13 · 2013: 15 · 2012: 6
FWCI
36.52
Type
book chapter
Language
en
Open access
closed
Locations
  • Advances in carbohydrate chemistry and biochemistry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Polysaccharides Composition and Applications
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Seaweed-derived Bioactive Compounds
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Polysaccharides and Plant Cell Walls
Keywords
red algae, sulfated galactans, agar, agarose, carrageenan, xylan, polysaccharide structure, polysaccharide structure elucidation, biologically active polymers, taxonomic markers
MeSH terms
Rhodophyta, Carrageenan, Cellulose, Enzymes, Galactans, Hydrolysis, Mannans, Methylation, Magnetic Resonance Spectroscopy, Oxidation-Reduction, Periodic Acid, Polysaccharides, Spectrophotometry, Infrared, Mass Spectrometry, Spectrum Analysis, Raman, Xylans

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