Polyphenolic characterization of old local apple varieties from south East European region (CROSBI ID 193456)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Jakobek, Lidija ; García-Villalba, Rocio ; Tomás- Barberán, Francisco A.
engleski
Polyphenolic characterization of old local apple varieties from south East European region
Ancient apple cultivars grown in local areas have so far been largely unexplored and might represent an important source of polyphenols. In this work, the phenolic profile in the flesh and peel of thirteen old apple varieties from the Balkan region was studied by liquid chromatography with ultraviolet - visible diode array detector and mass spectrometry detectors (ion trap, quadrupole time-of-flight). 26 compounds were identified. Proanthocyanidins were detected as dimers to heptamers and they were further analyzed after acid-catalysis in the presence of phloroglucinol (degree of polymerization 3.8 to 10.3). Epicatechin represented more than 85 % of constitutive units. Proanthocyanidins were the major class of polyphenols in flesh and peel (> 70 % of total polyphenols), phenolic acids were mainly distributed in the flesh (6 - 25 %) ; flavonols (1 - 13 %) and dihydrochalcones (1 - 10 %) in the peel, and anthocyanins (1 - 7 %) in the peel of red coloured apples. “Ljubeničarka” showed unique red coloured flesh (unusual for apples) due to the presence of anthocyanins in the flesh. Old apple varieties are rich in phenolic compounds, in quantities even higher than those found in commercial varieties and might constitute the basis for further breeding
apples; food analysis; food composition; proanthocyanidins; phloroglucinolysis; flavonols; phenolic acids; anthocyanins; dihydrochalcones; LC-MS
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Podaci o izdanju
31 (2)
2013.
199-211
objavljeno
0889-1575
10.1016/j.jfca.2013.05.012
Povezanost rada
Prehrambena tehnologija