Abstract
Extracts of the roots of Pfaffia glomerata and Pfaffia paniculata, and fruits of Melia azedarach will be obtained by Soxhlet extraction with polar solvents. Fractionation of these extracts, that are rich in saponins, will be studied by using two different methods of supercritical technology: 1) fractionation of dry extract using a fixed-bed sequential extraction with supercritical carbon …