Figure 5.
1H-NMR spectra of HM1-HM10 samples, 400 MHz, DMSO-d6. In this stacked view, a close similarity in chemical composition between samples is observed, except for HM9. In this sample, a remarked difference can be noticed in the aromatic region (5.9–7.8 ppm), where strong resonances related to flavonoids were detected.