'Limoncella' is a variety of apple traditionally cultivated in south-central Italy since ancient Roman times. The relationship between phenolic composition and antioxidant activity of apple peel and flesh was investigated. Apple extracts analysed by high-performance liquid chromatography, showed that compared with flesh, peel was richer in all the quantified phenols. The most abundant polyphenols were the flavanols catechin and epicatechin, and the chalcones phloridzin and phloretin xyloglucoside. The extracts were evaluated for their radical-scavenging activity by the DPPH{radical dot} and H2O2 methods, and the antioxidant activity through reduction of Mo(VI) and inhibition of the formation of TBARS species. © 2007 Elsevier Ltd. All rights reserved.
'Limoncella' apple, an Italian apple cultivar: Phenolic and flavonoid contents and antioxidant activity
D'ABROSCA, Brigida;PACIFICO, Severina;FIORENTINO, Antonio
2007
Abstract
'Limoncella' is a variety of apple traditionally cultivated in south-central Italy since ancient Roman times. The relationship between phenolic composition and antioxidant activity of apple peel and flesh was investigated. Apple extracts analysed by high-performance liquid chromatography, showed that compared with flesh, peel was richer in all the quantified phenols. The most abundant polyphenols were the flavanols catechin and epicatechin, and the chalcones phloridzin and phloretin xyloglucoside. The extracts were evaluated for their radical-scavenging activity by the DPPH{radical dot} and H2O2 methods, and the antioxidant activity through reduction of Mo(VI) and inhibition of the formation of TBARS species. © 2007 Elsevier Ltd. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
