Method for the production of a phenolic substance from wood

摘要

This invention concerns a method for the production of hydroxymatairesinol or a hydroxymatairesinol complex from wood, comprising the steps of a) extracting finely divided wood material with a polar solvent, b) optionally concentrating the extract by separating at least part of the solvent. The invention is characterized by the steps of c) adding to the extract an agent able to form a complex with hydroxymatairesinol, and d) precipitating the hydroxymatairesinol complex, and optionally e) releasing the hydroxymatairesinol from the complex.