J. Agric. Food Chem., 52(19):5843-5848, 2004
Chemical constituents of Morinda citrifolia fruits inhibit copper-induced low-density lipoprotein oxidation
K. Kamiya, Tanaka, Y., Endang, H., Umar, M., Satake, T.

Extracts of the fruits of Morinda citrifolia inhibited arteriosclerosis (thickening and hardening of the arteries) by 88% and 96%. Two novel compounds (americanoic acid A and morindolin) were also isolated. Four other compounds were found to exhibit strong anti-oxidant (scavenging of free radicals) activity. The activity of these compounds is mainly due to their number of phenolic hydroxyl groups (weakly acidic organic compounds, containing one or more atoms of hydrogen and oxygen bonded together).