Identification of secondary metabolite compounds in n-hexane extract of noni (Morinda citrifolia Linn) leaves through phytochemical test

Noni ( Morinda citrifolia Linn) is one of the plants with a high antioxidant content in its roots, leaves, and fruit. Noni leaf extract contains numerous active compounds, including flavonoids, anthraquinones, sterols, terpenoids, alkaloids, tannins, ascorbic acid, beta carotene, and prexeronin. The aim of this study was to use phytochemical tests to identify the active compounds in n-hexane extracts of noni leaves. This test begins with extracting noni leaves using n-hexane solvent. The resulting extracts were subjected to phytochemical testing including alkaloid, flavonoid, steroid, terpenoid, tannin, and saponin tests. The results of this test showed that the n-hexane extract of noni leaves contained only terpenoids and steroids. As a result, it can be concluded that these two compounds can react with non-polar solvents such as n-hexane.