University of Minnesota

Dmytro A Krasutskyy

Pavel A Krasutsky

Oksana Kolomitsyna

Dmytro Avilov

Tatiana Sergeeva

Igor V Kolomitsyn

The invention provides improved processes for the extraction of betulin, lupeol, betulinic acid, suberinic acids, and/or other organic compounds and compositions from birch bark. In some embodiments, the birch bark can be physically processed prior to the extraction process, which can further improve the yield of the extraction. The bark processing can include, but is not limited to, one or more of pelletizing the bark, baling the bark, pucking the bark, or compressing the bark, to a form that is more dense per volume unit than prior to the processing.

Depolymerization extraction of compounds from birch bark

The invention provides novel compounds that are quaternary amine derivatives of betulin and other triterpenes. The compounds have antibacterial, antifungal, and surfactant properties.

Growing community of inventors

Duluth, MN, United States of America

Dmytro A Krasutskyy