This is a positive aspect of lignin isolation for a valorization
route of lignin, in particular when the non-condensed fraction
of this material plays an important role, such as production of low
molecular weight phenolics by oxidation (Pinto et al., 2013, 2011).
Furthermore, the isolation promoted the elimination of inorganic
chemicals. For carbohydrates elimination further processing is
recommended if higher purity of lignin is required.