Hemicellulose is a promising renewable raw material for the production of hydrogels. This
polysaccharide exists in large amounts in various waste streams, in which they are usually
impure and heavily diluted. Several downstream processing methods can be combined to
concentrate and purify the hemicellulose. However, such an approach can be costly; hence,
the effect of impurities on the formation and properties of hydrogels must be determined.
Lignin usually exists in these waste streams as a major impurity that is also difficult to …