What is "glucuronoxylan"

n. (context biochemistry English) The primary part of hemicellulose as found in hardwood trees such as birch.

Angiosperm (hardwood) glucuronoxylans also have a high rate of substitution (70-80%) by acetyl groups, at position 2 and/or 3 of the β-D-xylopyranosyl, conferring on the xylan its partial solubility in water.