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The structure and13C NMR spectra of mannitol oligo-β-d-glucopyranosides isolated from the brown seaweedChorda filum (L.) Lam

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Abstract

1-O-β-d-Glucopyranosyl-d-mannitol, 1,6-di-O-glucopyranosyl-d-mannitol, 1-O-β-gentiobiosyl-d-mannitol, 1-O-β-gentiobiosyl-6-O-β-d-glucopyranosyl-d-mannitol, and 1-O-β-d-gentiotriosyl-d-mannitol were isolated from the brown seaweedChorda filum and the assignment of signals in their13C NMR spectra was performed. Comparative analysis of the oligosaccharide composition and the structure of laminarans from seven brown algae demonstrates that the oligosaccharides are not always fragments of the corresponding laminarans.

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Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 1817–1820, October, 1993.

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Usov, A.I., Chizhov, A.O. The structure and13C NMR spectra of mannitol oligo-β-d-glucopyranosides isolated from the brown seaweedChorda filum (L.) Lam. Russ Chem Bull 42, 1742–1745 (1993). https://doi.org/10.1007/BF00697055

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Key words

  • mannitol oligo-β-d-glucopyranosides
  • 13C NMR
  • brown algae
  • laminarans