Abstract
To compare varietal differences in Rubus coreanus Miq. (Rosaceae), we evaluated antioxidant activity and the contents of functional substances. In this study, five new cultivars selected as superior berries in yield and weight of fruit, R. coreanus (Jungkeuam 1, 2, 3, 4, and 5), and one foreign berry, R. fructicosus were used. The contents of the major anthocyanin, cyanidin-3-glucoside (C3G) in berries and antioxidant capacity including, free radical scavenging activity and reducing power were measured. The contents of total phenol and vitamin C were also investigated. Among 5 cultivars and one foreign berry, Jungkeuam 1 had the richest C3G and high levels in vitamin C. DPPH radical scavenging activity of berries was ranged from 46.58 up to 78.55%.
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