Efficient purification of the diarylheptanoid oregonin from red alder (Alnus rubra) leaves and bark combining aqueous extraction, spray drying and flash-chromatography.
Carmen S LeaChakravarthi SimhadriStephen G BradburyJeremy E WulffC Peter ConstabelPublished in: Phytochemical analysis : PCA (2020)
The developed method was robust, repeatable, and yielded purified oregonin of greater than > 95% purity (average of 95.8%). Our analysis represents the most complete NMR characterisation of oregonin reported to date.