Botany, Ethnomedicinal Uses, Biological Activities, Phytochemistry, and Technological Applications of Morinda citrifolia Plants

Morinda citrifolia L., known as noni, is a tropical plant belonging to the Rubiaceae family and is widely used in traditional medicine for its therapeutic properties. This review compiles botanical, ethnomedicinal, phytochemical, and pharmacological information about the species, as well as its technological applications. Studies indicate that various parts of the plant, such as the fruits, leaves, seeds, and roots, contain bioactive compounds such as flavonoids, iridoids, alkaloids, and phenolic acids. These compounds are associated with antioxidant, antimicrobial, anti-inflammatory, wound-healing, gastroprotective, antidiabetic, and hypocholesterolemic activities. Among these, antioxidant activity is particularly notable, with different extracts and isolated compounds demonstrating potent free radical scavenging capabilities. Additionally, the antimicrobial potential against resistant bacteria, healing effects observed in animal models, and immunomodulatory properties further support the traditional therapeutic use of noni. Moreover, the plant shows promise for applications in the formulation of pharmaceutical, cosmetic, and nutraceutical products. Although evidence of its beneficial effects is growing, further clinical studies and standardization of extracts are necessary to ensure its safe and effective use in medical practice.