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dc.contributor.author Tako, Masakuni
dc.contributor.author Ohtoshi, Rintaro
dc.contributor.author Kinjyo, Kazutaka
dc.contributor.author Uech, Shuntoku
dc.date.accessioned 2016-07-25T12:27:52Z
dc.date.available 2016-07-25T12:27:52Z
dc.date.issued 2016-06
dc.identifier.uri http://dx.doi.org/10.4236/abc.2016.63010
dc.identifier.uri http://hdl.handle.net/123456789/906
dc.description.abstract The polysaccharide was isolated from Hypnea pannosa which was grown in Okinawa, Japan. The yield of the polysaccharide was 17.2%, and the total carbohydrates, pyruvic acid, sulfuric acid and ash contents were 55.2%, 3.8%, 35.2% and 24.3%, respectively. 3,6-Anhydro-α-D-galactose, β-D-galactose, α-D-galactose and D-glucose were identified by liquid and thin-layer chromatography. Fourier transform infrared (FTIR) spectra of the polysaccharide resembled that of ι-carrageenan. From the 1H- and 13C-NMR spectra, 1,3-linked β-D-galactose, 1,4-linked anhydro-α-D-galactose, 1,4-linked α-D-galactose, 1,4-linked β-D-glucose and pyruvic acid (carboxyl acetal, methyl proton and methyl carbon) were assigned. Methylation analysis revealed terminal D-galactose 0.1 mol), 1,4-linked D-glucose (1.0 mol) and 1,2,3,4,6-linked D-galactose (3.7 mol) for native polysaccharide, and terminal D-galactose, 1,4-linked D-galactose (1.9 mol), 1,4-linked D-glucose (1.0 mol), 1,3- linked D-galactose (1.7 mol), and 1,3,4,6-linked D-galactose (0.3 mol) which substituted with pyruvate group at 4 and 6 positions for desulfated polysaccharide. The polysaccharide was the novel pyruvated glucogalactan sulfate, the structure of which was proposed. en_US
dc.language.iso en en_US
dc.publisher Scientific Research Publishing en_US
dc.relation.ispartofseries Advances in Biological Chemistry , 2016, 6, 114- 125;
dc.subject Hypnea pannosa en_US
dc.subject Pyruvated Glucogalactan Sulfate en_US
dc.subject 1 H- and 13 C-NMR Analysis en_US
dc.subject Methylation Analysis en_US
dc.subject Chemical Structure en_US
dc.title The Novel Pyruvated Glucogalactan Sulfate Isolated from the Red Seaweed, Hypnea pannosa en_US
dc.type Article en_US


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