A novel polysaccharide isolated from Ulva Pertusa: Structure and physicochemical property

Xin Gao; Hang Qu; Shan Shan; Chen Song; Denis Baranenko; Yongzhi Li; Weihong Lu

doi:10.1016/j.carbpol.2020.115849

A novel polysaccharide isolated from Ulva Pertusa: Structure and physicochemical property

Carbohydr Polym. 2020 Apr 1:233:115849. doi: 10.1016/j.carbpol.2020.115849. Epub 2020 Jan 10.

Authors

Xin Gao¹, Hang Qu², Shan Shan¹, Chen Song¹, Denis Baranenko³, Yongzhi Li⁴, Weihong Lu⁵

Affiliations

¹ Institute of Extreme Environment Nutrition and Protection, Harbin Institute of Technology, Harbin, China; National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients, Harbin Institute of Technology, Harbin, China; School of Chemical Engineering and Chemistry, Harbin Institute of Technology, Harbin, China.
² School of Chemical Engineering and Chemistry, Harbin Institute of Technology, Harbin, China.
³ Biotechnologies of the Third Millennium, ITMO University, Saint-Petersburg, Russia.
⁴ Institute of Extreme Environment Nutrition and Protection, Harbin Institute of Technology, Harbin, China; China Astronaut Research and Training Centre, Beijing, China.
⁵ Institute of Extreme Environment Nutrition and Protection, Harbin Institute of Technology, Harbin, China; National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients, Harbin Institute of Technology, Harbin, China; School of Chemical Engineering and Chemistry, Harbin Institute of Technology, Harbin, China. Electronic address: lwh@hit.edu.cn.

PMID: 32059900
DOI: 10.1016/j.carbpol.2020.115849

Abstract

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.

Keywords: Physicochemical property; Polysaccharide; Structure; Ulva Pertusa.

MeSH terms

Carbohydrate Conformation
Carbohydrate Sequence
Polysaccharides / chemistry*
Polysaccharides / isolation & purification
Ulva / chemistry*

Substances

Polysaccharides