Journal of Applied Phycology

, Volume 22, Issue 2, pp 131–137 | Cite as

Extraction and characterization of an alginate from the brown seaweed Sargassum turbinarioides Grunow

  • Taratra Andrée Fenoradosoa
  • Ghina Ali
  • Cedric Delattre
  • Celine Laroche
  • Emmanuel Petit
  • Anne Wadouachi
  • Philippe Michaud


Matrix polysaccharide from the brown algae Sargassum turbinarioides collected in the coastal waters of Nosy Be (Madagascar) in the Indian Ocean was isolated and its structure was studied by 1H-NMR spectroscopy, FT-IR, SEC-MALLS and HPAEC. An alginate with a molecular weight of 5.528 × 105 g mol−1 was identified as sole polysaccharide. Values of the M/G ratio, F GG, F MM and F GM (or F GM) blocks were measured at respectively 0.94, 0.39, 0.36 and 0.25 and compared with those of alginates from other Sargassum species. This sodium alginate appeared similar to some of the other Sargassum alginates with M/G < 1, high values of homopolymeric blocks (η < 1) and significant polyguluronic block content.


Polysaccharide Alginate Sargassum 



This work was supported by the Agence Universitaire de la Francophonie.


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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Taratra Andrée Fenoradosoa
    • 1
    • 2
  • Ghina Ali
    • 1
  • Cedric Delattre
    • 1
  • Celine Laroche
    • 1
  • Emmanuel Petit
    • 3
  • Anne Wadouachi
    • 3
  • Philippe Michaud
    • 1
  1. 1.Laboratoire de Génie Chimique et BiochimiqueUniversité Blaise Pascal, Polytech Clermont FerrandAubièreFrance
  2. 2.Laboratoire de Chimie des Substances NaturellesUniversité d’Antsiranana (201)Diego-SuarezMadagascar
  3. 3.Laboratoire des Glucides UMR 6219Université de Picardie Jules VerneAmiensFrance

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