Pre-treatment
The biomass raw material consists of a large number of different chemical compounds – both small molecules and large (macro)molecules. The main macromolecules are cellulose, hemicellulose and lignin, but there can also be a considerable fraction of lipids. Cellulose and hemicellulose are carbohydrates (although variously modified in hemicellulose), while lignin is a complex macromolecule composed
https://www.lubirc.lu.se/summary-research/pre-treatment - 2026-10-13
