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OwnerJin Woong Kim, Young Hae Choi +3inventors
InventorsJin Woong Kim, Young Hae Choi, Ki Pung Yoo, Min Jeong Noh, Joo Hee Han
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The invention relates to a method for extracting and preparing alkaloids from plants using supercritical fluid extracting technology and alkaloids prepared by said method. Specifically, the invention relates to a method of preparing alkaloids by mixing plants with carbon dioxide as a major solvent and 1 to 20 parts by weight of at least one alkaline cosolvent selected from a group consisting of methanol, ethanol, water or a mixture thereof wherein 2 to 18 (v/v) % of diethylamine or triethylamine is dissolved in the cosolvent based on 100 parts by weight of carbon dioxide at the temperature of 70 to 90° C. and under 4000 to 6000 PSI of pressure in a supercritical extracting apparatus to extract the alkaloid, and then separating, filtering and purifying the alkaloid using the chromatography, and to alkaloids prepared by said method.
A method of isolating at least one alkaloid from a plant, said method comprising mixing plant material with carbon dioxide as a major solvent and 1 to 20 parts by weight of at least one alkaline cosolvent selected from the group consisting of methanol, ethanol, water, and a mixture thereof, wherein 2 to 18 (v/v) % of diethylamine or triethylamine is dissolved in said alkaline cosolvent based on 100 parts by weight of carbon dioxide at a temperature of 70 to 90° C. and a pressure of 4,000 to 6,000 PSI in a supercritical extracting apparatus to extract said at least one alkaloid;
Dependencies are inferred from the claim text.