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Structure and Biological Activity Analysis of Fucoidan Isolated from Sargassum siliquosum.

ABSTRACT: Fucoidans are heterologous polysaccharides commonly seen in brown macroalgae and are known for their biological activity including anticancer, antiangiogenic, immunomodulation, and antiviral properties. The brown macroalga Sargassum siliquosum was used for the extraction and analysis of fucoidan in this study. The S. siliquosum fucoidan was indicated as a galactofucoidan composed of sugars, uronate, and sulfate at a ratio of 12:1:4 and its purity was 85% based on the abovementioned three major components. Structural analysis by electrospray ionization collision-induced dissociation tandem mass spectroscopy revealed that the purified fucoidan consisted of a carbohydrate chain composed of (1?3)-linked or (1?4)-linked l-fucose residues, with sulfate groups at C-2 and C-4 positions. Galactose residues with (1?4)-linkages function as the branch points and they are located at the C-3 or C-4 position of fucose residues. Galactose residues are sulfated mainly at C-4 and C-6, while some sulfation can also be seen at C-2. The fucoidan purified from S. siliquosum demonstrated antioxidant, anti-inflammatory, and antilipogenic activities.

SUBMITTER: Wang SH

PROVIDER: S-EPMC7758953 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Structure and Biological Activity Analysis of Fucoidan Isolated from Sargassum siliquosum.

Wang Shao-Hua SH Huang Chih-Yu CY Chen Chun-Yen CY Chang Chia-Che CC Huang Chun-Yung CY Dong Cheng-Di CD Chang Jo-Shu JS

ACS omega 20201212 50

Fucoidans are heterologous polysaccharides commonly seen in brown macroalgae and are known for their biological activity including anticancer, antiangiogenic, immunomodulation, and antiviral properties. The brown macroalga Sargassum siliquosum was used for the extraction and analysis of fucoidan in this study. The S. siliquosum fucoidan was indicated as a galactofucoidan composed of sugars, uronate, and sulfate at a ratio of 12:1:4 and its purity was 85% based on the abovementioned ...[more]

PMID: 33376882

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Structure and Biological Activity Analysis of Fucoidan Isolated from Sargassum siliquosum.

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Structure and Biological Activity Analysis of Fucoidan Isolated from <i>Sargassum siliquosum</i>.

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