Quali-quantitative analysis of the main phenolic compounds in apple flesh (Annurca variety)
| Polyphenol compound | Concentration (mg/100 g of apple flesh) |
|---|---|
| Mean (SD) from three separate experiments. | |
| Analysis was carried out with high pressure liquid chromatography and peaks were monitored at 280 nm (catechin, epicatechin, rutin, and phloridizin) and at 325 nm (chlorogenic acid and caffeic acid). | |
| Chlorogenic acid | 9.06 (1.09) |
| Caffeic acid | 0.18 (0.10) |
| Catechin | 11.93 (1.23) |
| Epicatechin | 6.34 (1.85) |
| Rutin | 0.15 (0.03) |
| Phloridizin | 1.09 (0.31) |