Carbohydrate Polymers: Synthesis, Preparation, Structural Characteristics and Applications

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Biomacromolecules, Biobased and Biodegradable Polymers".

Deadline for manuscript submissions: 15 November 2024 | Viewed by 917

Special Issue Editors

National Forestry and Grassland Southwest Engineering Technology Research Centre of Taxus, Sichuan Agricultural University, Dujiangyan, China
Interests: polysaccharides; carbohydrate polymers; glycoproteins
Special Issues, Collections and Topics in MDPI journals
Department of Landscape Plants, Sichuan Agriculture University, Chengdu 611130, China
Interests: medicinal plants; biosynthesis; active ingredients; regulation mechanism
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Carbohydrate polymers are some of the most abundant and important biological macromolecules in nature. Carbohydrate-related polymers can be roughly divided into three categories: (a) polysaccharides found in nature, usually homopolymers or heteropolymers (including cellulose, dextrin, and agarose); (b) naturally derived synthetic polysaccharides, which are polymers containing the main chain of carbohydrates, made by ring-opening polymerization or other methods with monomers made from natural sugars; and (c) sugar polymers (including glycopeptides) are synthetic polymers with monosaccharides or oligosaccharides as side groups. The application of carbohydrate polymers, especially sugar polymers, has attracted significant attention.

This Special Issue mainly covers the preparation, structural modification, biological and chemical synthesis, structural characteristics, biological activity, and potential application of carbohydrate polymers in areas such as bioenergy, bioplastics, biomaterials, nanotechnology, biorefining, drug delivery, food, chemistry, packaging, paper, pharmaceuticals, medicine, oil recovery, textiles, and wood.

Prof. Dr. Aoxue Luo
Dr. Yijun Fan
Guest Editors

Manuscript Submission Information

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Keywords

  • carbohydrate polymers
  • polysaccharide
  • synthesis
  • structural characteristics
  • biological activity

Published Papers (1 paper)

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Research

16 pages, 5501 KiB  
Article
Differential Studies on the Structure of Lignin–Carbohydrate Complexes (LCC) in Alkali-Extracted Plant Hemicelluloses
by Shuyu Pang, Xin Wang, Jiali Pu, Chen Liang, Shuangquan Yao and Chengrong Qin
Polymers 2024, 16(10), 1403; https://doi.org/10.3390/polym16101403 - 15 May 2024
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Abstract
Hemicellulose extracted by alkali treatment is of interest because of the advantages of its intact sugar structure and high degree of polymerization. However, the hemicellulose extracted by alkali treatment contained more lignin fragments and the presence of a lignin–carbohydrate complex (LCC), which affected [...] Read more.
Hemicellulose extracted by alkali treatment is of interest because of the advantages of its intact sugar structure and high degree of polymerization. However, the hemicellulose extracted by alkali treatment contained more lignin fragments and the presence of a lignin–carbohydrate complex (LCC), which affected the isolation and purification of hemicellulose and its comprehensive utilization. Therefore, the evaluation of the LCC structure of different types of lignocellulosic resources is of great significance. In this study, the LCC structures of hardwoods and Gramineae were enriched in alkaline systems. Information on the composition, structural proportions, and connection patterns of LCC samples was discussed. The similarities and differences between the LCC structures of different units of raw materials were comparatively studied. The results indicated that the monosaccharide fractions were higher in the LCC of Gramineae compared to hardwoods. The composition of the lignin fraction was dominated by G and S units. The phenyl glycosidic (PhGlc) bond is the predominant LCC linkage under alkali-stabilized conditions. In addition, Gramineae PhGlc types are more numerous compared to hardwoods. The results of the study provide insights into the differences in the chemical composition and structural features of LCC in different plants and provide important guidance for the optimization of the process of purifying hemicellulose. Full article
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