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.

在苹果品种“Brookfield”、“Granny Smith”和“Fuji”以及海棠品种“Hillary”收获时，对两个季节的花、叶、小果和成熟果实的总和特定酚类化合物和抗氧化能力进行了量化和“满洲”。结果表明，叶子的酚浓度和抗氧化能力最高。花、小果和成熟收获果实的酚类和抗氧化剂含量逐渐降低。花和叶中根皮苷的浓度很高，而在收获时果实、果皮和整个果实中的浓度较低。果皮中浓度最高的酚类化合物是槲皮素苷，而在整个果实中则是黄烷醇。