CHED 1345 |
| Amphipterygium adstringens (Julianiacae) is an endemic resinous and dioecious medicinal plant of Mexico, regional name “Cuahalalate,” used extensively for the treatment of cholelithiasis, inflammation, hypercholesterolemia, gastritis, gastric ulcers, diabetes, and cancer of the gastrointestinal tract. Our chemical analysis attempts to identify the chemical components present in various extracts of the bark. The pulverized bark was extracted successively in a Soxhlet apparatus with solvents of increasing polarity, (1) petroleum ether, (2) anhydrous diethyl ether, (3) chloroform, and (4) absolute ethanol. Separate extracts of the whole bark were prepared with dichloromethane and de-ionized water. The aqueous infusions were extracted in a separatory funnel with dichloromethane. Extracts were evaporated to dryness and the residues dissolved in anhydrous dichloromethane. Samples were concentrated, filtered, and dried with anhydrous sodium sulfate and analyzed with a GC-MS. Ethanolic extracts were tested with chemical reagents for the presence of phytosterols, phloroglucides, tannins, alkaloids, glycosides and phenolic compounds. |
|
Undergraduate Research Poster Session: Medicinal
2:00 PM-4:00 PM, Monday, March 26, 2007 Hyatt Regency Chicago -- Riverside Center, Poster
Division of Chemical Education |