It should be emphasized, that the energy required for a reaction can be reduced by scale up which makes this method even more attractive. For successful depolymerization of the biomass a strong acid with a pKa below -1.8 such as hydrochloric or sulfuric acid is needed. The approach we investigated is based on sulfuric acid as catalyst and a planetary ball mill. Hereby we aimed to obtain oligomeric glycans with a defined molecular weight of 1-10 kDa, which is precipitated in a second step followed by functionalization. These defined functionalized oligomeric glycans can be used in the packaging industry as binder in coating resins as well as in printing resins.