alexa Abstract | Purification and structural characterization of sulfated polysaccharide from Sargassum myriocystum and its efficacy in scavenging free radicals

Indian Journal of Pharmaceutical Sciences
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Research Paper Open Access


Sulfated polysaccharides from marine algae are one of the commercially beneficial compounds with a range of pharmaceutical and biomedical applications. They are testified to be effective against free radicals and related health complications. This study aims to determine the antioxidant potential of the sulfated polysaccharide from Sargassum myriocystum, followed by its purification and structural characterization. Amount of extract obtained was 5% from 10 g of plant material. The carbohydrate and sulfate content were found to be 31 and 0.34 mg/10 g of plant material, respectively. Total sulfated polysaccharide extract showed a good radical scavenging activity at lower concentrations. The active principle from the total sulfated polysaccharide was fractionated in anion exchange and gel filtration columns followed by structural characterization using Fourier transform infrared and nuclear magnetic resonance spectroscopy. Fraction 12 closely matched with the Fourier transform infrared and nuclear magnetic resonance spectra of fucoidan. Based on the results obtained, we conclude that sulfated polysaccharide from Sargassum myriocystum is identified as Fucoidan with potential radical scavenging activity compared to butylated hydroxyl toluene.

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Author(s): S Badrinathan TM Shiju A Suneeva Sharon Christa R Arya V Pragasam


Sargassum myriocystum, antioxidant, sulfated polysaccharide, fucoidan

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