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Soybean hemicellulose is a water-soluble dietary fiber and food additive extracted from soy fiber (Okara), a byproduct of soybean oil and protein production.
Soybean hemicellulose functions as an emulsifier, stabilizer, and thickener, improving texture in products like yogurt, sauces, and baked goods, while also acting as a prebiotic.
Soybean hemicellulose components are seldom extracted directly from their source.
CAS: 9034-32-6
Extracts are a mixture of polysaccharides, lignin, and lignin—hemicellulose complexes (by chemical linkages and possibly physical interactions) characteristic of their origin and the solvent employed.
Soybean hemicellulose has a lower degree of polymerization (DP) than cellulose (about 200 vs more than 10,000) and its lower limits have not been clearly defined.
The extract may contain two or more polymers of similar composition but different structures (polydiversity) or of different distributions and amounts of branching or bonding in otherwise similar molecules (polydispersity).
If a single polymer is present, Soybean hemicellulose may exhibit a spectrum of molecular weights (polymolecularity) which may exhibit a Gaussian or biased distribution.
A pure Soybean hemicellulose is one where polydiversity has been avoided and a degree of heterogeneity has been attained compatible with end use application.
Chemical Properties
Soybean hemicellulose is the least utilized component of the biomass triad comprising cellulose, lignin, and hemicellulose.
The term was originated by Schulze (1) and is used here to distinguish the noncellulosic polysaccharides of plant cell walls from those that are not part of the wall structure. Confusion arises because other Soybean hemicellulose definitions based on solvent extraction are often used in the literature.
The term polyose is used in Europe to describe these noncellulosic polysaccharides from wood, whereas Soybean hemicellulose is used to describe the alkaline extracts from commercial pulps.
Uses
Soybean hemicellulose can be used in biological study of method for fractionation of biomass devoltalization products.
