Next Article in Journal
Targeting Cancer Stem Cells with Novel 4-(4-Substituted phenyl)-5-(3,4,5-trimethoxy/3,4-dimethoxy)-benzoyl-3,4-dihydropyrimidine-2(1H)-one/thiones
Next Article in Special Issue
Phosphorylated Radix Cyathulae officinalis Polysaccharides Act as Adjuvant via Promoting Dendritic Cell Maturation
Previous Article in Journal
Chemical Basis of the Fungicidal Activity of Tobacco Extracts against Valsa mali
Previous Article in Special Issue
A Method for Determining the Content of Glycoproteins in Biological Samples
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Molecules 2016, 21(12), 1745;

Characterization of Fractional Polysaccharides from Gleditsia sinensis and Gleditsia microphylla Gums

MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
Nanjing Institute for the Comprehensive Utilization of Wild Plant, Nanjing 210042, China
Authors to whom correspondence should be addressed.
Academic Editors: Quan-Bin Han, Sunan Wang, Shaoping Nie and Derek J. McPhee
Received: 10 October 2016 / Revised: 12 December 2016 / Accepted: 14 December 2016 / Published: 19 December 2016
(This article belongs to the Special Issue Natural Polysaccharides)
Full-Text   |   PDF [906 KB, uploaded 19 December 2016]   |  


The seeds of Gleditsia sinensis and Gleditsia microphylla, widespread in China, are an important source of galactomannans. G. sinensis gum (GSG) and G. microphylla gum (GMG) were purified and precipitated using different concentrations of ethanol and isopropanol. The GSG and GMG, precipitated in different stages, presented different characteristics, including polymer recovery, mannose/galactose ratio, chemical composition, molecular weight, and morphological appearance. The galactomannan recovery of GSG and GMG in 33.3% ethanol was 81.7% and 82.5%, respectively, while that in 28.8% isopropanol was 81.3% and 82.9%, respectively. To achieve similar precipitation efficiency, the amount of isopropanol should be lower than that of ethanol because of the lower dielectric constant of isopropanol (20 vs. 25 for ethanol). The precipitation behavior of galactomannans in polar organic solvents was dependent on the molecular structures and properties of the solvent. A higher mannose/galactose ratio and a higher molecular weight was obtained in a lower concentration of alcohols. View Full-Text
Keywords: Gleditsia sinensis; Gleditsia microphylla; ethanol; isopropanol; fractionation Gleditsia sinensis; Gleditsia microphylla; ethanol; isopropanol; fractionation

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Liu, Y.; Xu, Z.; Zhang, W.; Duan, J.; Jiang, J.; Sun, D. Characterization of Fractional Polysaccharides from Gleditsia sinensis and Gleditsia microphylla Gums. Molecules 2016, 21, 1745.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top