BIRCH BARK PELLETIZATION AND METHODS FOR OBTAINING NATURAL PRODUCTS FROM BIRCH BARK PELLETS

摘要

The present invention provides birch bark pellets that include outer birch bark. The present invention also provides methods of manufacturing birch bark pellets from outer birch bark. The present invention also provides methods for obtaining a natural product from birch bark pellets. The birch bark pellets are manufactured from outer birch bark that includes relatively low amounts of inner birch bark and wood. The birch bark pellets meet the requirement for extraction, to obtain e.g., betulin and/or lupeol from the pellets.