In addition, the antioxidant capacity was also measured and good radical scavenger activity (DPPH and ABTS assays) and mild reducing properties (FRAP assay) were found. The flowers are the morphological part with lowest antioxidant capacity while the ethanolic extracts of the berries are the most active part of R. grandifolius Lowe. Despite that the phenolic composition of the water extract was much less diversified than the ethanolic extract, the antioxidant capacity is in the same order.