A new water-soluble polysaccharide UPP was obtained from Ulva Pertusa and its structure was studied. The structural analysis results showed that UPP was composed of eight residues. The bone structure of UPP was →4)-β-D-Xylp-(1→4)-α-L-Rhap3S(1→3,4)-β-L-Arap(1→3)-α-L-Rhap(1→2,4)-α-L-Rhap(1→4)-α-D-Galp(1→ and there were two main branches. The branch structure at the 3-position of 1,3,4-β-L-Arap was →3,4)-β-L-Arap(1→4)-β-D-Glcp3Me(1→4)- β-D-GlcpA(1→ and the branch structure at 2-position of 1,2,4-α-L-Rhap was →4)-β-D-GlcpA(1→4)-β-D-Xylp(1→. In addition, the physicochemical property analysis showed that UPP was a semi-crystalline polymer and there was no triple-helical structure. This structure analysis of UPP will be beneficial for future research on the algal polysaccharides.

中文翻译：

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从百日草中分离得到的新型多糖：结构和理化性质。

从Ulva Pertusa获得了一种新型水溶性多糖UPP，并对其结构进行了研究。结构分析结果表明，UPP由八个残基组成。UPP的骨结构为→4）-β-D-Xylp-（1→4）-α-L-Rhap3S（1→3,4）-β-L-Arap（1→3）-α-L- Rhap（1→2,4）-α-L-Rhap（1→4）-α-D-Galp（1→有两个主分支，分支结构在1,3,4-的3位β-L-Arap是→3,4）-β-L-Arap（1→4）-β-D-Glcp3Me（1→4）-β-D-GlcpA（1→并且分支结构在2位1,2,4-α-L-Rhap的总和是→4）-β-D-GlcpA（1→4）-β-D-Xylp（1→）。此外，理化性质分析表明UPP是半结晶聚合物，没有三螺旋结构，UPP的这种结构分析将对藻类多糖的进一步研究有帮助。