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Have the Flowers, Fruitlets, Ripe Fruit and Leaves of Apples Cultivars Similar Compositions of Phenolic and Antioxidant Capacity?

Haben Blüten, junge und reife Früchte sowie Blätter von Apfelsorten eine ähnliche Zusammensetzung phenolischer Verbindungen und eine vergleichbare antioxidative Kapazität?

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Total and specific phenolic compounds and antioxidant capacity were quantified over two seasons in flowers, leaves, fruitlets, and ripe fruit at harvest of the apple cultivars ‘Brookfield’, ‘Granny Smith’ and ‘Fuji’, as well the crabapple cultivars ‘Hillary’ and ‘Manchurian’. The results showed that leaves had the highest phenol concentrations and antioxidant capacity. Phenolic and antioxidant content was progressively lower from flowers, fruitlets, and ripe harvested fruit. There were high concentrations of phloridzin in flowers and leaves, while concentrations were lower in fruitlets, peel, and entire fruit at harvest. The phenolic compound with the highest concentration in peel was quercetin glycoside, while in the entire fruit it was flavanols. The studied crabapple cultivars did not present differences between them in phenolic compounds and antioxidant capacity.

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This research is part of the Project IT13I20048 supported by ‘Fondo de Fomento al Desarrollo Científico y Tecnológico’ (FONDEF), Chile.

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Correspondence to José A. Yuri.

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J.A. Yuri, A. Neira, M. Fuentes, B. Sáez and I. Razmilic declare that they have no competing interests.

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Yuri, J.A., Neira, A., Fuentes, M. et al. Have the Flowers, Fruitlets, Ripe Fruit and Leaves of Apples Cultivars Similar Compositions of Phenolic and Antioxidant Capacity?. Erwerbs-Obstbau 64, 201–209 (2022).

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