An improved process for the isolation of a bioactive fraction from vitex negundo

摘要

An improved process for the Isolation of bioactive fraction from vitex negundo containing irideid glycosides of formula 1 & 2 as shown in accompanying drawing from vitex negundo which comprises .defalting the plant parts with non polar solvent, extracting the plant part or defatted plant parts by polar solvents, removing the solvent by evaporation, washing the residue obtained from plant parts with non-polar solvents such as herein described to get the said bioactive fraction at least with 15% yield.