Extraction method and purification method of cannabidiol acid

The invention discloses an extraction method and a purification method of cannabidiol acid. The invention provides an extraction method of cannabidiol acid, which comprises the following steps: carrying out carbon dioxide extraction on cannabis sativa flowers and leaves, and removing carbon dioxide...

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Bibliographic Details
Main Authors HUA MOLI, LUO JIAJIA, XU YUNHUI, ZHOU JING, SUN JING, ZHU MINHANG
Format Patent
LanguageChinese
English
Published 01.07.2022
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:The invention discloses an extraction method and a purification method of cannabidiol acid. The invention provides an extraction method of cannabidiol acid, which comprises the following steps: carrying out carbon dioxide extraction on cannabis sativa flowers and leaves, and removing carbon dioxide to obtain a crude cannabidiol acid product; in the carbon dioxide extraction process, an entrainer does not need to be added; the extraction temperature is 40 to 70 DEG C; the extraction pressure is 25 to 55 Mpa. The invention also provides a purification method of cannabidiol acid, which comprises the following steps: carrying out primary liquid phase separation on a crude cannabidiol acid product, collecting a separated product, and carrying out secondary liquid phase separation on the separated product to obtain a pure cannabidiol acid product, a chromatographic column filler for the first liquid phase separation is silica gel microspheres or polystyrene microspheres; a chromatographic column filler for the seco
Bibliography:Application Number: CN202011643571