Journal
PLANT FOODS FOR HUMAN NUTRITION
Volume 70, Issue 3, Pages 324-330Publisher
SPRINGER
DOI: 10.1007/s11130-015-0497-2
Keywords
Iranian red-fleshed apples; Radical scavenging activity; Antioxidant activity; Cytoprotection; Anthocyanins
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In order to promote breeding programs and a full reintroduction into production of two local red-fleshed apple varieties grown in Bekran and Bastam (Iran), the evaluation of their antioxidant properties was of interest. LC-MSn based metabolic fingerprinting analyses were applied to investigate the anthocyanin content of both peel and flesh components of the fruits. Cyanidin-3-O-hexoside isomers were present in both 'Bekran' and 'Bastam' apples, whereas 'Bekran' apple was a valuable source of anthocyanin rutinose derivatives. Employing DPPHaEuro cent, ABTS(aEuro cent+), and ORAC methods, the antiradical efficacy was evaluated. The ability of the investigated fruit components to scavenge OHaEuro cent, and O-2 (aEuro cent-) reactive species was also assessed. ID50 values highlighted the massive antioxidant response of 'Bekran' peel component, able to counteract by 50 % OHaEuro cent, and O-2 (aEuro cent-) at 130.3 and 91.6 mu g/mL, respectively. The cytoprotective screening towards HeLa, HepG2, A549, SH-5YSY, and SK-N-BE(2)-C cell lines evidenced that the investigated Iranian red-fleshed apple fruits were able to exert a significant antioxidant response in hydrogen peroxide oxidized cell systems. Data collected suggested that the revaluation of 'Bekran' and 'Bastam' apple cultivars could represent a precious source of antioxidant compounds whose dietary intake could improve the human well-being reducing risks of free radical related chronic and degenerative diseases.
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