The Source for Glucan Bio Info

Text Box: Glucan Biopolymers
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Glucan Biopolymers

Starch (see also starch structure) is a homopolymer of glucose, linked together as either α-1,4-D-Glucan or α-1,6-D-Glucan.

Text Box: Starch

Cellulose (see also cellulose structure) is a homopolymer of glucose, linked together as β-1,4-D-Glucan.

Text Box: Cellulose

Hemicellulose (see also hemicellulose structure) is a mixed glycan polymer of several sugars including xylose, arabinose, glucose, mannose and galactose.

Text Box: Hemicellulose

Mixed-Linkage Glucan (see also glucan structure) is a homopolymer of glucose, linked together as β-1,4-D-Glucan and β-1,3-D-Glucan.

Text Box: Mixed-Linkage Glucan

Glucan biopolymers are polysaccharides of D-glucose monomers linked by glucosidic bonds. These biopolymers represent the primary storage and structural components of plants. Plant glucan biopolymers include Starch, Cellulose and Mixed-Linkage Glucan. Lignocellulose is composed of cellulose and mixed-linkage glucan mixed with the glycan biopolymer hemicellulose, all cross-linked with Lignin. These biopolymers are vital as a renewable source of feed, food and biomass for liquid fuel production.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Text Box: Glucan  Biopolymers: Home
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Text Box: Table below summarizes a composition comparison of different bioenergy crops (from:  Scurlock (2008) * Factsheet: Bioenergy Feedstock Characteristics, Oak Ridge National Laboratory).
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