Phytochemical analysis by liquid chromatography of ten old apple varieties grown in Austria and their antioxidative activity
Jan Oszmiański , Sabina Lachowicz , Hannes Gamsjäger
AbstractThe phytochemicals and antioxidative potency in ten old apple varieties cultivated in Austria were characterized. The apple varieties were tested for contents of polyphenolic compounds, sugars and organic acid with the liquid chromatography method, and antioxidative activity with the ABTS, DPPH and FRAP assays. A total of 31 polyphenols, including 13 favanols, 5 phenolic acids, 10 favonols, 1 anthocyanin, and 2 dihydrochalcones were determined. The average content of polyphenols was 2294.25 mg/100 g dw (dry weight) with high ABTS, DPPH and FRAP assays (mean 5.05, 5.85 and 3.38 mmol Trolox (TE)/100 g dw). In turn, the amount of sugar in the old apple varieties was ranged from 261.68 to 429.56 mg/g dw, and organic acids from 42.76 to 112.51 mg/g dw. The statistical method of PCA successfully selected old apple varieties cultivated in Austria that contained the highest levels of bioactive compounds, antioxidative potency, organic acid and low level of sugars varieties such as ‘Brünnerling Type 1’, ‘Croncels Type 2’, ‘Brünnerling Type 4’, and ‘Goldgelbe Sommerrenette’.
|Journal series||European Food Research and Technology, ISSN 1438-2377, e-ISSN 1438-2385, (N/A 70 pkt)|
|Publication size in sheets||0.55|
|Keywords in English||Antioxidant capacity; HPLC-ELSD; LC–MS; Organic acids; Polyphenolic compounds|
|ASJC Classification||; ; ; ;|
|Score||= 70.0, 15-09-2020, ArticleFromJournal|
|Publication indicators||= 2; = 2; : 2018 = 0.943; : 2018 = 2.056 (2) - 2018=2.093 (5)|
|Citation count*||4 (2020-09-20)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.