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Antitumor Active Fucoidan from the Brown Seaweed,Umitoranoo(Sargassum thunbergii)
Bioscience Biotechnology and Biochemistry1995Vol. 59(4), pp. 563–567
Citations Over TimeTop 22% of 1995 papers
Abstract
Neutral and acidic polysaccharides and their protein complexes were fractionated and purified from the brown seaweed umitoranoo (Sargassum thunbergii) by fractional extraction, iron-exchange chromatography, and gel filtration. Thirty-one polysaccharide fractions were obtained and tested for antitumor activity in mice with Ehrlich carcinoma transplanted i.p. Two of the fractions, GIV-A ([alpha]25D -127 degrees and mol. wt., 19,000) and GIV-B ([alpha]25D -110 degrees and mol. wt., 13,500) had such activity. On the basis of chemical and spectral analyses, these compounds were found to be a fucoidan or L-fucan containing approx. 30% sulfate ester groups per fucose residue, about 10% uronic acid, and less than 2% protein.
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