Xylan is the most abundant type of polysaccharide in nature except cellulose and the main chain consists of xylose residues linked by β-1,4 glycosidic bonds. They are linked to other cell wall components through interactions such as covalent and hydrogen bonds. As the only five-carbon sugar polymer, xylan has physical and chemical properties that distinguish it from other polysaccharides. Currently, xylan is widely used in the pharmaceutical industry. In addition, hydrogels prepared by xylan cross-linking have a wide range of applications in the biomedical field, such as skin care materials, wound dressings, drug delivery carriers, and so on.
Fig.1 Types and structures of common xylans. (CD BioGlyco)
Xylan comes from a wide variety of sources and has a promising future. CD BioGlyco offers comprehensive xylan analytical services based on our Analysis of Polysaccharides. Our analytical services include but are not limited to isolation and purification of xylan, structural analysis, monosaccharide composition analysis, relative molecular mass analysis, and viscosity analysis.
Fig.2 Procedures and methods of xylan analysis. (CD BioGlyco)
Paper Title: Molecular modification, structural characterization, and biological activity of xylans
Journal: Carbohydrate Polymers
Table 1 Chemical shift values corresponding to functional groups.
|Chemical Shift Value / cm-1
|Unsaturated Carbonyl Groups
|1590-1600; 1415-1425; 1320-1330
The detection of characteristic absorption peaks based on the infrared spectrum (IR) can be used to observe the preliminary changes in the structure of xylans, including glycosidic bonds, sugar configurations, and substituents. Table 1 shows some of the new characteristic peaks that appeared after the molecular modification of xylans.
CD BioGlyco has accumulated extensive experience in the field of polysaccharide analysis. We provide reliable and comprehensive xylan analysis service to every client. If you are interested in our services, please feel free to contact us.