Hanma Investment Group Co., Ltd. (HMI Group) subsidiary Yunnan Hansu Biotechnology Co.,Ltd. (Hansu) received a U.S. Patent for METHOD FOR EXTRACTING CANNABIDIOL FROM CANNABIS on May 28th ,2019. (Patent No.: US 10301242B2)
Peter Tan (Chairman of HMI Group) said “We cannot move an inch without a patent in overseas” HMI Group has declared over 90 domestic and international patents in the field of bio-pharmaceutics and health.
HMI Group is the only legal investment company in China focusing on the whole industrial chain of industrial hemp and the direction of biopharmaceutical. The patent US 10301242B2 will be as a key point to develop and enlarge the U.S. & Global industrial hemp market.
“It’s only a beginning of HMI Group for overseas patent, we would be awarded more in the future”Peter Tan said.
The patent’s abstract as follows:
A method of extracting cannabidiol from hemp. The method may include the following steps: performing grinding and drying on an extraction part of the hemp to obtain crude drug powder; extracting the crude drug powder with 30-100% (V/V)ethanol to obtain an extracting solution: concentrating the extracting solution to obtain an extractum: performing water precipitation on the extractum to remove impurities, thereby obtaining a water precipitation solution: concentrating the water precipitation solution、 and adding 10-100% (V/V) ethanol to dissolve the obtained precipitate， thereby obtaining a precipitate alcohol solution； performing column chromatography on the precipitate alcohol solution: concentrating the eluate obtained by elution after column chromatography, and adding ethanol for supersaturation and dissolution to obtain a crystal: adding purified water or ethanol to wash the crystal, thereby obtaining a primary product: and uniformly mixing the primary product to wash the crystal, thereby obtaining a primary product: and uniformly mixing the primary product with purified water, and drying to obtain the cannabidiol.
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