Nutritional Characterization, Bioactive Compounds and Antioxidant Activity of Brazilian Roses (Rosa spp)

Abstract

The aim of this study was to evaluate thirteen cultivars of roses for nutritional composition , bioactive compounds and total antioxidant activity. Attaché cultivar had the highest amounts of proteins and total fiber. Regarding color, Avalanche presented values for interna l cromacity around 7 fold higher than Attaché cultivar. The results showed that the evaluated roses presented means of bioactive compounds as ascorbic acid (70.47 mg 100 g - 1 ), yellow flavonoids (35.25 mg 100 g - 1 ) and total anthocyanins (150.40 mg 100 g - 1 ). The evaluated roses presented relatively low content of total carotenoids (1.25 mg 100 g - 1 ), and high content of total polyphenols (1565 mg 100 g - 1 ) and antioxidant capacity (260 μM trolox g - 1 ). Avalanche, Prima Donna, Dolce Vita, Salmone, and Elisa cult ivar presented the minor Euclidean distance. The petals of the evaluated roses are excellent sources of nutritional compounds and antioxidants. Keywords: Carotenoids , Minerals, Petals, Phenolics, Roses