Biomaterial Database

[Study on supercritical CO2 extraction of lecithin from radix Polygoni Multiflori Preparata by orthogonal design]. 2003

Yan Bai, and Fahuan Ge

Guangdong College of Pharmacy, Guangzhou 510224.

OBJECTIVE To find out the optimal supercritical CO2 fluid extraction process for Radix Polygoni Multiflori Preparata, the extraction process was studied by orthogonal design with the yield of lectithin as index. METHODS Four factors were chosen in this experiment, including extractor pressure, extractor temperature, separator I pressure and separator I temperature. The ultraviolet visible spectrophotometry was applied for the determination of lecithin in all different experimental conditions. RESULTS The optimal supercritical CO2 fluid extraction process was: extractor pressure 32 MPa, extractor temperature 50 degrees C, separator I pressure 6 MPa and separator I temperature 55 degrees C. CONCLUSIONS Compared with the traditional extraction methods, SFE-CO2 process has the predominance of saving solvent and shortening the technology process, which is exactly suitable for industralization manufacture.

UI	MeSH Term	Description	Entries
D010713	Phosphatidylcholines	Derivatives of PHOSPHATIDIC ACIDS in which the phosphoric acid is bound in ester linkage to a CHOLINE moiety.	Choline Phosphoglycerides,Choline Glycerophospholipids,Phosphatidyl Choline,Phosphatidyl Cholines,Phosphatidylcholine,Choline, Phosphatidyl,Cholines, Phosphatidyl,Glycerophospholipids, Choline,Phosphoglycerides, Choline
D010946	Plants, Medicinal	Plants whose roots, leaves, seeds, bark, or other constituent parts possess therapeutic, tonic, purgative, curative or other pharmacologic attributes, when administered to man or animals.	Herbs, Medicinal,Medicinal Herbs,Healing Plants,Medicinal Plants,Pharmaceutical Plants,Healing Plant,Herb, Medicinal,Medicinal Herb,Medicinal Plant,Pharmaceutical Plant,Plant, Healing,Plant, Medicinal,Plant, Pharmaceutical,Plants, Healing,Plants, Pharmaceutical
D011312	Pressure	A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)	Pressures
D002245	Carbon Dioxide	A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.	Carbonic Anhydride,Anhydride, Carbonic,Dioxide, Carbon
D004365	Drugs, Chinese Herbal	Chinese herbal or plant extracts which are used as drugs to treat diseases or promote general well-being. The concept does not include synthesized compounds manufactured in China.	Chinese Herbal Drugs,Plant Extracts, Chinese,Chinese Drugs, Plant,Chinese Plant Extracts,Extracts, Chinese Plant,Herbal Drugs, Chinese
D000704	Analysis of Variance	A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.	ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses
D013678	Technology, Pharmaceutical	The application of scientific knowledge or technology to pharmacy and the pharmaceutical industry. It includes methods, techniques, and instrumentation in the manufacture, preparation, compounding, dispensing, packaging, and storing of drugs and other preparations used in diagnostic and determinative procedures, and in the treatment of patients.	Technology, Pharmacy,Pharmaceutic Technology,Pharmaceutical Technology,Pharmacy Technology,Technology, Pharmaceutic
D013696	Temperature	The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms.	Temperatures
D019664	Polygonaceae	The only family of the buckwheat order (Polygonales) of dicotyledonous flowering plants. It has 40 genera of herbs, shrubs, and trees.
D025924	Chromatography, Supercritical Fluid	A CHROMATOGRAPHY method using supercritical fluid, usually carbon dioxide under very high pressure (around 73 atmospheres or 1070 psi at room temperature) as the mobile phase. Other solvents are sometimes added as modifiers. This is used both for analytical (SFC) and extraction (SFE) purposes.	Supercritical Fluid Chromatography,Supercritical Fluid Extraction,Extraction, Supercritical Fluid,SFC (Supercritical Fluid Chromatography),SFE (Supercritical Fluid Extraction),Fluid Chromatography, Supercritical,Fluid Extraction, Supercritical