POLYFENOLY V ODRŮDÁCH JABLEK Z PĚSTITELSKÝCH REGIONŮ ČESKÉ REPUBLIKY A POLSKA [POLYPHENOLS IN APPLE VARIETIES FROM DIFFERENT FRUIT GROWING REGIONS OF THE CZECH REPUBLIC AND POLAND]

• Published in: Vědecké práce ovocnárské - Výzkumný a slechtitelský ústav ovocnárský v Holovousích Vol. 29; no. 1; pp. 44 - 51
• Main Authors: Aneta Bílková, Pavlína Knapová, Dáša Jiroušová, Martin Mészáros, Jiří Sedlák
• Format: Journal Article
• Language: Czech
• Published: VÝZKUMNÝ A ŠLECHTITELSKÝ ÚSTAV OVOCNÁŘSKÝ HOLOVOUSY s.r.o 01.05.2023
• Subjects: liquid chromatography; malus domestica; polyphenols
• ISSN: 2695-1347

Apples are an important source of polyphenolic substances that contribute to the antioxidant activity of the fruit. Presence of apples in the diet significantly contributes to the intake of polyphenols. Apple consumption is associated with prevention of degenerative diseases. Polyphenolic profiles of apples from different regions of the Czech Republic and Poland were analyzed using high-performance liquid chromatography with diode array detection. Four phenolic substances quercitric, epicatechin, phloridzin, and chlorogenic acid were determined in selected apples samples. No statistically significant differences between the regions of the given country were determined for the varieties ‘Golden Delicious’ and ‘Idared’. Chlorogenic acid was the major polyphenol in apples from Poland and its content tended to be higher being 45.4 ± 20.2 µg/g for the ‘Golden Delicious’ and 74.1 ± 2.6 µg/g for the ‘Idared’ varieties, while in the Czech Republic it was 34.2 ± 14.0, respectively 44.3 ± 21.3 µg/g. In contrast, Czech apples contained more epicatechin and quercitrin in these varieties.