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Cellulose and Pectic Polysaccharides01:15

Cellulose and Pectic Polysaccharides

Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth.  Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds.
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Automated Modular High Throughput Exopolysaccharide Screening Platform Coupled with Highly Sensitive Carbohydrate Fingerprint Analysis
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Curdlan, a functionally microbial extracellular polysaccharide with versatile food applications.

Zhaohui Xu1, Zexu Li1, Yaxin Wu1

  • 1State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China.

Food Chemistry
|May 18, 2026
PubMed
Summary
This summary is machine-generated.

Curdlan, a β-1,3-glucan, forms thermally irreversible gels. This review explores its structure, properties, and extraction, highlighting its potential in food applications due to its unique gelation and clean-label appeal.

Keywords:
CurdlanFood applicationsFunctional carrierGelation mechanismGelation propertiesStructural modificationβ-1,3-glucan

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Area of Science:

  • Food Science and Technology
  • Biopolymer Chemistry
  • Materials Science

Background:

  • Curdlan is a microbial extracellular polysaccharide with a linear β-1,3-glucan backbone.
  • It exhibits thermally irreversible gelation, a unique functional property.
  • Increasing demand for plant-based and clean-label foods drives interest in curdlan.

Purpose of the Study:

  • To systematically review curdlan's molecular structure, conformation, and gelation mechanism.
  • To establish the link between curdlan's microscopic structure and macroscopic properties.
  • To discuss extraction methods and future potential in food applications.

Main Methods:

  • Literature review of curdlan's properties, structure, and gelation.
  • Analysis of extraction and purification techniques, including alkaline-acid and green methods.
  • Discussion of structure-property relationships and application potential.

Main Results:

  • Curdlan's rigid triple-helix structure dictates its distinctive gel behavior and high mechanical strength.
  • Extraction methods range from traditional alkaline-acid processes to emerging green alternatives.
  • Structural regulation of the triple-helix conformation can enhance gel performance.

Conclusions:

  • Curdlan's unique properties make it a promising ingredient for plant-based and clean-label food systems.
  • Optimizing extraction and structural design can expand curdlan's food applications.
  • Further research into curdlan's challenges and opportunities is recommended for R&D guidance.