Applied Biochemistry and Biotechnology

, Volume 186, Issue 3, pp 535–546 | Cite as

Isolation and Structural Characterization of a Second Polysaccharide from Bulbs of Lanzhou Lily

  • Fengxia WangEmail author
  • Wei Wang
  • Xiaobo Niu
  • Yulong Huang
  • Ji ZhangEmail author


In this study, a second water-soluble polysaccharide (designated as LDP-2) was isolated from the bulbs of Lanzhou Lily (Lilium davidii var. unicolor). Based on monosaccharide composition and methylation analysis, its structural features were investigated using a variety of characterizations, such as size-exclusion chromatography combined with laser light scattering (SEC-LLS), gas chromatography-mass spectroscopy (GC-MS), infrared (IR) spectroscopy, and nuclear magnetic resonance (NMR) spectroscopy. The results demonstrate that LDP-2 is a homogeneous heteropolysaccharide (molecular weight 6.2 × 104 Da), which includes four kinds of monosaccharides (Lyx, Man, Glc, and Gal in an approximate weight ratio of 6.74: 6.28: 76.50: 10.48). Furthermore, its morphology, thermal behavior, and preliminary hypoglycemic activities were also investigated.


Polysaccharide Lanzhou Lily Purification Hypoglycemic activity 


Funding Information

We thank the National Natural Science Foundation of China (21561019) and Young Teachers Research Capacity Promotion Program of Northwest Normal University (NWNU-LKQN-16-19) as well as the Foundation of A Hundred Youth Talents Training Program of Lanzhou Jiaotong University.

Compliance with Ethical Standards

Conflicts of Interest

The authors declare that they have no conflict of interest.

Supplementary material

12010_2018_2750_MOESM1_ESM.doc (126 kb)
Fig. S1 (DOC 126 kb)


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.College of Life ScienceNorthwest Normal UniversityLanzhouChina
  2. 2.Bioactive Products Engineering Research Center for Gansu Distinctive PlantsLanzhouChina
  3. 3.School of Chemical and Biological EngineeringLanzhou Jiaotong UniversityLanzhouChina

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