Table 1.

 Quali-quantitative analysis of the main phenolic compounds in apple flesh (Annurca variety)

Polyphenol compound	Concentration (mg/100 g of apple flesh)
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)

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).