The polysaccharides of the brown seaweed Turbinaria murrayana |
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Authors: | Mohamed M. El-Sayed |
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Affiliation: | Chemistry Department, Faculty of Marine Science, King Abdul Aziz University, Jeddah, P.O. Box 1540 Saudi Arabia |
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Abstract: | Polysaccharides of the brown seaweed Turbinaria murrayana were isolated. Laminaran (3.2%) was isolated from the hot-water extract of the algae by using ion-exchange chromatography. Fucans (2.1%) were isolated from the hot-water extract, as well (4.7%) as from the extract of the algae with dilute acid. Acid hydrolsysis of the isolated fucans revealed glucose, amnnose, fucose, glucuronic acid, xylose, and galactose. Alginic acid (22.6%) was separated, and reduced to a neutral polysaccharide. The polysaccharides isolated were analyzed by methylation and Smith degradation. |
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