From the densitometric analysis, it was found that at 530 nm, the peak areas of two bands (Rf 0.19 and 0.26) were much higher compared to other bands (Fig. 1)
Rf value of 0.19 indicated delphinidin-3-rutinoside (Tatsuzawa et al., 2000) whereas, Rf value of 0.26 indicated delphinidin-3-glucoside