Structural elucidation of fucoidan from Cladosiphon okamuranus (Okinawa mozuku)

•Fucoidan from Cladosiphon okamuranus was purified for chemical structure elucidation.•The majors components of the fucoidan were fucose (70.13 ± 0.22 wt%) and sulphate (15.16 ± 1.17 wt%).•Fucoidan structure: [→3)-α-fuc(1→]0.52[→3)-α-fuc-4-OSO3-(1→]0.33[→2)-α-fuc]0.14. Fucoidan is a sulphated polysa...

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Published inFood chemistry Vol. 272; pp. 222 - 226
Main Authors Lim, Seng Joe, Wan Aida, Wan Mustapha, Schiehser, Sonja, Rosenau, Thomas, Böhmdorfer, Stefan
Format Journal Article
LanguageEnglish
Published England Elsevier Ltd 30.01.2019
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Abstract •Fucoidan from Cladosiphon okamuranus was purified for chemical structure elucidation.•The majors components of the fucoidan were fucose (70.13 ± 0.22 wt%) and sulphate (15.16 ± 1.17 wt%).•Fucoidan structure: [→3)-α-fuc(1→]0.52[→3)-α-fuc-4-OSO3-(1→]0.33[→2)-α-fuc]0.14. Fucoidan is a sulphated polysaccharide, made up mainly of l-fucose, which is found in brown seaweeds. Its chemical structure is diverse and depends on maturity, species and geographical location. The objective of this study was to elucidate the chemical structure of fucoidan from Cladosiphon okamuranus harvested in Japan. The fucoidan was subject to purification prior to monosaccharide profiling, sulphate content determination, and linkage analysis. Our results showed that Japanese Cladosiphon okamuranus fucoidan contained 70.13 ± 0.22 wt% fucose and 15.16 ± 1.17 wt% sulphate. Other minor monosaccharides found were d-xylose, d-galactose, d-mannose, d-glucose, d-arabinose, d-rhamnose and d-glucuronic acid. Linkage analysis revealed that fucopyranoside units along the backbone are linked, through α-1,3-glycosidic bonds, with fucose branching at C-2, and one sulphate group at C-4 per every three fucose units, i.e. the structure of fucoidan from Japanese Cladosiphon okamuranus is [→3)-α-fuc(1→]0.52[→3)-α-fuc-4-OSO3-(1→]0.33[→2)-α-fuc]0.14.
AbstractList •Fucoidan from Cladosiphon okamuranus was purified for chemical structure elucidation.•The majors components of the fucoidan were fucose (70.13 ± 0.22 wt%) and sulphate (15.16 ± 1.17 wt%).•Fucoidan structure: [→3)-α-fuc(1→]0.52[→3)-α-fuc-4-OSO3-(1→]0.33[→2)-α-fuc]0.14. Fucoidan is a sulphated polysaccharide, made up mainly of l-fucose, which is found in brown seaweeds. Its chemical structure is diverse and depends on maturity, species and geographical location. The objective of this study was to elucidate the chemical structure of fucoidan from Cladosiphon okamuranus harvested in Japan. The fucoidan was subject to purification prior to monosaccharide profiling, sulphate content determination, and linkage analysis. Our results showed that Japanese Cladosiphon okamuranus fucoidan contained 70.13 ± 0.22 wt% fucose and 15.16 ± 1.17 wt% sulphate. Other minor monosaccharides found were d-xylose, d-galactose, d-mannose, d-glucose, d-arabinose, d-rhamnose and d-glucuronic acid. Linkage analysis revealed that fucopyranoside units along the backbone are linked, through α-1,3-glycosidic bonds, with fucose branching at C-2, and one sulphate group at C-4 per every three fucose units, i.e. the structure of fucoidan from Japanese Cladosiphon okamuranus is [→3)-α-fuc(1→]0.52[→3)-α-fuc-4-OSO3-(1→]0.33[→2)-α-fuc]0.14.
Fucoidan is a sulphated polysaccharide, made up mainly of l-fucose, which is found in brown seaweeds. Its chemical structure is diverse and depends on maturity, species and geographical location. The objective of this study was to elucidate the chemical structure of fucoidan from Cladosiphon okamuranus harvested in Japan. The fucoidan was subject to purification prior to monosaccharide profiling, sulphate content determination, and linkage analysis. Our results showed that Japanese Cladosiphon okamuranus fucoidan contained 70.13 ± 0.22 wt% fucose and 15.16 ± 1.17 wt% sulphate. Other minor monosaccharides found were d-xylose, d-galactose, d-mannose, d-glucose, d-arabinose, d-rhamnose and d-glucuronic acid. Linkage analysis revealed that fucopyranoside units along the backbone are linked, through α-1,3-glycosidic bonds, with fucose branching at C-2, and one sulphate group at C-4 per every three fucose units, i.e. the structure of fucoidan from Japanese Cladosiphon okamuranus is [→3)-α-fuc(1→] [→3)-α-fuc-4-OSO -(1→] [→2)-α-fuc] .
Fucoidan is a sulphated polysaccharide, made up mainly of l-fucose, which is found in brown seaweeds. Its chemical structure is diverse and depends on maturity, species and geographical location. The objective of this study was to elucidate the chemical structure of fucoidan from Cladosiphon okamuranus harvested in Japan. The fucoidan was subject to purification prior to monosaccharide profiling, sulphate content determination, and linkage analysis. Our results showed that Japanese Cladosiphon okamuranus fucoidan contained 70.13 ± 0.22 wt% fucose and 15.16 ± 1.17 wt% sulphate. Other minor monosaccharides found were d-xylose, d-galactose, d-mannose, d-glucose, d-arabinose, d-rhamnose and d-glucuronic acid. Linkage analysis revealed that fucopyranoside units along the backbone are linked, through α-1,3-glycosidic bonds, with fucose branching at C-2, and one sulphate group at C-4 per every three fucose units, i.e. the structure of fucoidan from Japanese Cladosiphon okamuranus is [→3)-α-fuc(1→]₀.₅₂[→3)-α-fuc-4-OSO₃-(1→]₀.₃₃[→2)-α-fuc]₀.₁₄.
Fucoidan is a sulphated polysaccharide, made up mainly of l-fucose, which is found in brown seaweeds. Its chemical structure is diverse and depends on maturity, species and geographical location. The objective of this study was to elucidate the chemical structure of fucoidan from Cladosiphon okamuranus harvested in Japan. The fucoidan was subject to purification prior to monosaccharide profiling, sulphate content determination, and linkage analysis. Our results showed that Japanese Cladosiphon okamuranus fucoidan contained 70.13 ± 0.22 wt% fucose and 15.16 ± 1.17 wt% sulphate. Other minor monosaccharides found were d-xylose, d-galactose, d-mannose, d-glucose, d-arabinose, d-rhamnose and d-glucuronic acid. Linkage analysis revealed that fucopyranoside units along the backbone are linked, through α-1,3-glycosidic bonds, with fucose branching at C-2, and one sulphate group at C-4 per every three fucose units, i.e. the structure of fucoidan from Japanese Cladosiphon okamuranus is [→3)-α-fuc(1→]0.52[→3)-α-fuc-4-OSO3-(1→]0.33[→2)-α-fuc]0.14.Fucoidan is a sulphated polysaccharide, made up mainly of l-fucose, which is found in brown seaweeds. Its chemical structure is diverse and depends on maturity, species and geographical location. The objective of this study was to elucidate the chemical structure of fucoidan from Cladosiphon okamuranus harvested in Japan. The fucoidan was subject to purification prior to monosaccharide profiling, sulphate content determination, and linkage analysis. Our results showed that Japanese Cladosiphon okamuranus fucoidan contained 70.13 ± 0.22 wt% fucose and 15.16 ± 1.17 wt% sulphate. Other minor monosaccharides found were d-xylose, d-galactose, d-mannose, d-glucose, d-arabinose, d-rhamnose and d-glucuronic acid. Linkage analysis revealed that fucopyranoside units along the backbone are linked, through α-1,3-glycosidic bonds, with fucose branching at C-2, and one sulphate group at C-4 per every three fucose units, i.e. the structure of fucoidan from Japanese Cladosiphon okamuranus is [→3)-α-fuc(1→]0.52[→3)-α-fuc-4-OSO3-(1→]0.33[→2)-α-fuc]0.14.
Author Lim, Seng Joe
Rosenau, Thomas
Schiehser, Sonja
Wan Aida, Wan Mustapha
Böhmdorfer, Stefan
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  surname: Lim
  fullname: Lim, Seng Joe
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  organization: Centre for Biotechnology and Functional Food, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
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  givenname: Wan Mustapha
  surname: Wan Aida
  fullname: Wan Aida, Wan Mustapha
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  organization: Centre for Biotechnology and Functional Food, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
– sequence: 3
  givenname: Sonja
  surname: Schiehser
  fullname: Schiehser, Sonja
  email: Sonja.schiehser@boku.ac.at
  organization: University of Natural Resources and Life Sciences, Vienna, Department of Chemistry, Division of Chemistry of Renewable Resources, Muthgasse 18, A-1190 Vienna, Austria
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  givenname: Thomas
  surname: Rosenau
  fullname: Rosenau, Thomas
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– sequence: 5
  givenname: Stefan
  surname: Böhmdorfer
  fullname: Böhmdorfer, Stefan
  email: stefan.boehmdorfer@boku.ac.at
  organization: University of Natural Resources and Life Sciences, Vienna, Department of Chemistry, Division of Chemistry of Renewable Resources, Muthgasse 18, A-1190 Vienna, Austria
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Keywords Brown seaweed
Structural elucidation
Cladosiphon okamuranus
Fucoidan
Monosaccharide analysis
Fucoidan (PubChem CID: 92023653)
Linkage analysis
Language English
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Snippet •Fucoidan from Cladosiphon okamuranus was purified for chemical structure elucidation.•The majors components of the fucoidan were fucose (70.13 ± 0.22 wt%) and...
Fucoidan is a sulphated polysaccharide, made up mainly of l-fucose, which is found in brown seaweeds. Its chemical structure is diverse and depends on...
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SubjectTerms arabinose
Brown seaweed
chemical structure
Cladosiphon
Cladosiphon okamuranus
Fucoidan
fucose
galactose
glucose
glucuronic acid
Linkage analysis
mannose
Monosaccharide analysis
Monosaccharides - analysis
Phaeophyceae - chemistry
Polysaccharides - chemistry
rhamnose
Ryukyu Archipelago
Structural elucidation
sulfates
Sulfates - chemistry
xylose
Title Structural elucidation of fucoidan from Cladosiphon okamuranus (Okinawa mozuku)
URI https://dx.doi.org/10.1016/j.foodchem.2018.08.034
https://www.ncbi.nlm.nih.gov/pubmed/30309536
https://www.proquest.com/docview/2119919099
https://www.proquest.com/docview/2131861423
Volume 272
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