STUDY OF FLAVONOIDS PRESENT IN POMELO (Citrus Maxima) BY DSC, UV-VIS, IR, 1H AND 13C NMR AND MS

Flavonoids are among the most important plant metabolites. Due to their potential benefits, there is a considerable interest in this natural product. In genus Citrus, some plants have not yet been much exploited in Brazil, as in the case of grapefruit (Citrus maxima), whose main flavonoids are naringin and their aglycone naringenin. The physico-chemical characteristics are important pre-requisites of reference chemical in future studies. In this context, the objective of this study was to determine the characterization of naringin and naringenin by melting point, DSC, UV-VIS, 1H and 13C NMR, IR and MS. Results revealed that, naringin and naringenin after characterization, can be used as a chemical of reference in future studies and contribute to seeking possible technological applications