NMR Confirmation and HPLC Quantification of Javamide-I and Javamide-II in Green Coffee Extract Products Available in the Market

Figure 1

HPLC chromatograms and chemical structures of javamide-I/javamide-II. HPLC analysis was performed and the standard curve (insert; ; for javamide-I and ; for javamide-II) was produced, described in Materials and Methods. The peaks of the standards () were detected using an electrochemical detector.