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Updated: Mar 21, 2026

Comparative Study on the Polysaccharide Contents and Antioxidant Activities of Hippophae rhamnoides subsp. sinensis and Hippophae gyantsensis
Published on: August 15, 2025
Chemical Modifications and Biological Activities of Polysaccharides
Gangliang Huang1, Xin Chen, Hualiang Huang
1College of Chemistry, Chongqing Normal University, Chongqing, 401331, China.
Abstract:
The chemical modifications of polysaccharides involve the use of chemical methods to modify some special structures or functional groups of polysaccharides on the main chains or side chains. The chemical methods include sulfation, phosphorylation, acetylation, carboxymethylation etc. Therefore, spatial structures, and physical and chemical properties of polysaccharides change, which enhance the biological activities of polysaccharides, e.g., immune regulation, antivirus, anti-tumor, anti-oxidation, etc.
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