Figure 1.

(a) Changes of individual compounds identified by RP-HPLC-DAD analysis. Concentrations of individual identified compounds are expressed as milligram per 10 grams of plant dry weight. Means (n = 3), showed as blank dots in each sub-figure, followed by different lowercase letters that report significant differences (p < 0.05) of phenolic concentrations during 0–24 h storage, according to Tukey’s test. (b) Structures of polyphenolic compounds present in the pomegranate leaf infusions. a: flavan-3-ols; b: flavanone; c: flavonol; and d: flavone. Basic structures of ellagitannins, such as e: HHDP acid, f: ellagic acid, g: galloyl group; h: punicalin; i: punicalagin; j: other possible ellagitannin (e.g., castalagin); k: gallic acid; and l: condensed tannin.