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Evaluation of the structures of galactans from Carpopeltis sp., a member of the Halymeniales in the western Indian Ocean

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Published/Copyright: February 16, 2006
Botanica Marina
From the journal Volume 49 Issue 1

Abstract

The polysaccharides from an aqueous extract of a Carpopeltis species from the southeastern coast of Madagascar were examined by 13C NMR spectroscopy. Over 80% of these polysaccharides comprised 3-linked D-galactose units that were non-substituted, 4-sulfated or 4,6-pyruvylated, and these alternated with 4-linked 3,6-anhydro-D-galactose units, some of which may have been 2-sulfated. There were also 4-linked 3,6-anhydro-L-galactose units present, which alternated primarily with 3-linked galactose-2-sulfate units. The natural extract contained 4-linked D-and L-galactose, many, but not all of which, were 6-sulfated and hence anhydrogalactose precursors, and there were minor components containing 2-O-methylanhydrogalactose, 6-O-methylgalactose, xylose, 2-O-methylgalactose, 3/4-O-methylgalactose. This is the first characterization of the galactans from a Carpopeltis species.

Keywords: 13C NMR spectroscopy; algal galactans; Carpopeltis; chemotaxonomy; sulfation
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Published Online: 2006-02-16
Published in Print: 2006-02-01

©2006 by Walter de Gruyter Berlin New York

Articles in the same Issue

  1. Morphological and molecular evidence for multiple invasions of Codium fragile in Atlantic Canada
  2. Response of microphytobenthos to flow and trophic variation in two South African temporarily open/closed estuaries
  3. The prostrate system of the Gelidiales: diagnostic and taxonomic importance
  4. Variations in lipid composition among different developmental stages of Gracilaria verrucosa (Rhodophyta)
  5. Intra-thallus phlorotannin content and antioxidant activity in Phaeophyceae of temperate waters
  6. Volatile compounds from some Black Sea red algae and their chemotaxonomic application
  7. Tissue age as a factor affecting carrageenan quantity and quality in farmed Kappaphycus striatum (Schmitz) Doty ex Silva
  8. Carrageenan of Eucheuma isiforme (Solieriaceae, Rhodophyta) from Yucatán, Mexico. I. Effect of extraction conditions
  9. Carrageenan of Eucheuma isiforme (Solieriaceae, Rhodophyta) from Yucatán, Mexico. II. Seasonal variations in carrageenan and biochemical characteristics
  10. Evaluation of the structures of galactans from Carpopeltis sp., a member of the Halymeniales in the western Indian Ocean
  11. Evaluation of beneficial bacteria from mangrove soil
  12. Marine fungi on Nypa fruticans in Thailand
https://doi.org/10.1515/BOT.2006.010
Keywords for this article
13C NMR spectroscopy; algal galactans; Carpopeltis; chemotaxonomy; sulfation

Articles in the same Issue

  1. Morphological and molecular evidence for multiple invasions of Codium fragile in Atlantic Canada
  2. Response of microphytobenthos to flow and trophic variation in two South African temporarily open/closed estuaries
  3. The prostrate system of the Gelidiales: diagnostic and taxonomic importance
  4. Variations in lipid composition among different developmental stages of Gracilaria verrucosa (Rhodophyta)
  5. Intra-thallus phlorotannin content and antioxidant activity in Phaeophyceae of temperate waters
  6. Volatile compounds from some Black Sea red algae and their chemotaxonomic application
  7. Tissue age as a factor affecting carrageenan quantity and quality in farmed Kappaphycus striatum (Schmitz) Doty ex Silva
  8. Carrageenan of Eucheuma isiforme (Solieriaceae, Rhodophyta) from Yucatán, Mexico. I. Effect of extraction conditions
  9. Carrageenan of Eucheuma isiforme (Solieriaceae, Rhodophyta) from Yucatán, Mexico. II. Seasonal variations in carrageenan and biochemical characteristics
  10. Evaluation of the structures of galactans from Carpopeltis sp., a member of the Halymeniales in the western Indian Ocean
  11. Evaluation of beneficial bacteria from mangrove soil
  12. Marine fungi on Nypa fruticans in Thailand
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