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Patent US10624872
Issued 2020-04-21
Apparatuses, Methods, And Systems For Extraction, Isolation And Conversion Of Various Cannabinoids, And Modifications Of Whole-plant Hemp Extracts Therewith
Apparatuses, methods, and systems for extraction, isolation, purification, and conversion of various cannabinoids, and modifications of whole-plant hemp extracts therewith are presented. A method for preparing a whole-plant hemp extract based product includes extracting cannabinoids from plant materials, such as one or more hemp varieties of Cannabis sativa. The method also includes separating and purifying CBD from the extracted cannabinoids, converting purified CBD to Δ9-THC and Δ8-THC and concurrently converting Δ9-THC to CBN, purifying and separating the CBN, and combining the purified CBN with a whole-plant hemp extract. Products and supplements related to the method are also described.
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- 1. A method for preparing a cannabis extract enriched in cannabinol, said method comprising:
(a) providing a cannabis extract comprising cannabidiol; (b) purifying the cannabidiol from the cannabis extract of step a); (c) converting the purified cannabidiol to Delta 9 tetrahydrocannabinol and Delta 8 tetrahydrocannabinol and concurrently converting Delta 9 tetrahydrocannabinol to cannabinol by heating the purified cannabidiol at 100° C. to 180° C., thereby producing cannabinol; (d) purifying the cannabinol by supercritical fluid chromatography; and (e) combining the purified cannabinol with another cannabis extract, thereby producing the cannabis extract enriched in cannabinol.
