Compounds from Eugenia jambolana (jamun) berries beyond anthocyanins

Raed Omar, University of Rhode Island


The purple berries of the native Indian plant Eugenia jambolana Lam., commonly known as Jamun, originated in India and has been used extensively in Ayurveda, the Indian traditional system of medicine. Our laboratory previously reported on the chemopreventive potential of a Jamun fruit extract and the identification of its anthocyanins. However, little is known about Jamun fruit (pulp and seed) compounds beyond these pigments. Jamun berries are popularly consumed in fresh form and as extracts. Secondary metabolites from the Jamun fruit were obtained from the crushed pulp and seeds. The compounds isolated and identified from Eugenia jambolana pulp were oleanolic acid, ursolic acid, β-sitosterol, and gallic acid. Five phytochemical constituents of Eugenia jambolana seeds were isolated including gallic acid, ellagic acid, oenothein C, cornusiin B, and valoneic acid dilactone. The isolation of one new compound (ROI27A) was afforded during this investigation also isolated from the seeds. These compounds were elucidated using 1D and 2D NMR spectroscopy and mass spectroscopy.

Subject Area

Pharmacy sciences|Pharmacy sciences

Recommended Citation

Raed Omar, "Compounds from Eugenia jambolana (jamun) berries beyond anthocyanins" (2011). Dissertations and Master's Theses (Campus Access). Paper AAI1491451.