3 ফলাফল
Investigation of a cytotoxic chloroform-soluble fraction of the stem of Casearia membranacea (Flacourtiaceae) led to the isolation of five new compounds, including one butenolide, casealactone (1), one chroman, caseamemin (2), two dolabellane diterpenoids, casearimene A (3) and casearimene B (4),
Gerbera anandria (Compositae) was extracted with 75% ethanol and the residue was fractionated using light petroleum, chloroform and ethyl acetate. The constituents of the extracts were separated by column chromatography employing solvents of different polarity. Column chromatography of the light
The objective of this research was to find the possible pharmacognosy of the bark of the Philippine Alstonia macrophylla Wall. ex G.Don (AM). Gas chromatographic-mass spectral (GC-EI-MS) characterization and energy dispersive X-ray spectroscopy (EDX) were performed to detect the bioactive