Birch bark pelletization and methods for obtaining natural...

Details Birch bark pelletization and methods for obtaining natural... Birch bark pelletization and methods for obtaining natural...

A - Human Necessities

61

K

A61K 36/49 (2006.01) A61K 31/575 (2006.01) C07J 53/00 (2006.01)

Patent

CA 2661949

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.

L'invention concerne des granulés d'écorce de bouleau qui comprennent l'écorce extérieure du bouleau. L'invention se rapporte également à des procédés de fabrication de granulés d'écorce de bouleau à partir de l'écorce extérieure du bouleau. L'invention porte aussi sur des procédés permettant d'obtenir des produits naturels à partir de granulés d'écorce de bouleau. Les granulés d'écorce de bouleau de l'invention sont fabriqués à partir d'écorce extérieure de bouleau comprenant des quantités relativement faibles d'écorce intérieure de bouleau et de bois. Les granulés d'écorce de bouleau précités sont adaptés aux exigences d'extraction en ce qu'ils peuvent être utilisés pour obtenir, p.ex., de la bétuline et/ou du lupéol.

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