Phenolic composition and free radical scavenging activity of different apple varieties in relation to the cultivar, tissue type and storage

► Literature data lack of information about the nutraceutical power of new hybrids. ► This study aimed to evaluate the effect of the cv, tissue and storage on the antiradical activity. ► Results underlined the key role of the genotype on the content of the nutraceutical power of apples. The aim of this research was to evaluate the influence of genotype, tissue type and cold storage on the bioactive compounds content and on the antiradical activity (AA) of different apple cultivars (Golden cl. B, Fuji cl. Kiku8, Braeburn cl. Hillwell). The content of analysed phyto-compounds depended on the clone, on the part of fruit, and to a minor extent, on the storage. For EC50 data, the cultivar represented the main source of variation and the interaction with the type of tissue, was significant. The AA of apples, measured by means of the DPPH test, was highly correlated to the flavan-3-ols content, which represents a good predictor of the apple antiradical power. The new Braeburn’s clone, the Hillwell, had the worst AA related to a minor phyto-chemical content. Also, its phenolic content was dramatically reduced after cold storage (flesh: −50%; peels: −20%; p