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  • Title: Structural analysis of Gigartina pistillata carrageenans (Gigartinaceae, Rhodophyta).
    Author: Amimi A, Mouradi A, Givernaud T, Chiadmi N, Lahaye M.
    Journal: Carbohydr Res; 2001 Jul 19; 333(4):271-9. PubMed ID: 11454334.
    Abstract:
    The chemical structure of carrageenans produced by the gametophytic and tetrasporophytic life cycle phases of Gigartina pistillata has been determined by permethylation analysis, IR and 13C NMR spectroscopies. The chemistry of the galactans varies according to the biological phases of the plant, the gametophytic alga produces heterogeneous kappa-iota type carrageenan containing minor amounts of nu-carrabiose. The tetrasporophytic alga synthesizes a complex sulfated galactan composed of lambda-, xi-, pi-carrabioses and sulfated carrabioses containing 3-linked galactopyranose 2,6-disulfate.
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