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Carbohydrate constituents of the marine algae of Sri Lanka part ii. composition and sequence of uronate residues in alginates from some brown seaweeds

Authors:

S. Shyamali M. De Silva ,

University of Peradeniya, Peradeniya, LK
About S. Shyamali M.

Department of Chemistry

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N. Savitri kumar

University of Peradeniya, Peradeniya, LK
About N. Savitri

Department of Chemistry

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Abstract

The ratio of mannuronic acid residues to guluronic acid residues (M/G ratio) of sodium alginate extracted from Cystoseira trinodis, Turbinaria conoidcs and Sargassum sp. was determined using high resolution 1H-NMR spectroscopy. The intensities of the signals due to H-5 of guluronate residues and H-1 of both guluronate and mannuronate residues were used. The alginate samples were found to be rich in guluronate residues, and the polymer chains are likely to be composed of long blocks of guluronate residues, short blocks of mannuronate residues and a small proportion of blocks containing both uronide residues.

How to Cite: De Silva, S.S.M. and kumar, N.S., 1984. Carbohydrate constituents of the marine algae of Sri Lanka part ii. composition and sequence of uronate residues in alginates from some brown seaweeds. Journal of the National Science Foundation of Sri Lanka, 12(2), pp.161–166. DOI: http://doi.org/10.4038/jnsfsr.v12i2.8353
Published on 30 Jun 1984.
Peer Reviewed

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