herbal and natural products have been used in folk medicine for centuries throughout the world. there has been renewed interest in screening higher plants for novel biologically active compounds, particularly those that effectively intervene in human ailments (mathivanan et al.,2006). morinda citrifolia (rubiacece), commercially known as noni, is indigenous to tropical countries and is considered as an imprtant traditional folk medicine. m. citrifolia have a history of use in polynesian traditional medicine for the treatments of infectious diseases (locher et al., 1995). the indigenous tribes of Australia used the ripe fruits of m.citrifolia for treatment