Hemicellulose is a collective term for mixtures of polysaccharides (multiple sugars), which occur in plant mass in variable compositions. Hemicelluloses are constituents of plant cell walls whose matrix consists of fibrillary, partially crystalline cellulose. When lignified, the matrix is ​​additionally interspersed with the macromolecule lignin, resulting in the formation of lignocellulose. The hemicelluloses are a part of the supporting and structural substance of cell walls and make up a quarter to a third of the plant mass. They are amorphous and do not form higher structures. The variety of carbohydrates or monosaccharides in nature is very large. They can be linked to polymers (polysaccharides) in different ways. These polymers may differ in the number of monomers.
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