Chemical components in noni fruits and leaves (Morinda citrifolia L.)

Morinda citrifolia (Rubiaceae), commonly known as noni, is a plant typically found in the Hawaiian and Tahitian islands. The bark, stem, root, leaf, and fruit have been used traditionally as a folk remedy for many diseases including diabetes, hypertension, and cancer. In this research, we reported the constituents of the fruits and leaves of this plant from both Hawaii and India. Several new glycosides and iridoids were identified. Four compounds isolated from noni fruits were found to suppress UVB-induced AP-I activity in cell cultures.