Bioactive compounds, bromatological and mineral characterization of blackberries in a subtropical region1

Hybrids and cultivars of black mulberry have a high content of ascorbic acid and fibers, with emphasis on the cultivar Tupy (75.0 mg 100 mL-1 and 7.23, respectively). Due to these characteristics, blackberry has been attracting the interest of producers and consumers, mainly due to the consumption potential associated with its beneficial properties to health. Because it is a temperate fruit, the largest Brazilian production comes from the Rio Grande do Sul State, but in the subtropical regions located above the Brazilian temperate zone have favorable conditions for fruit production, due there is your winter with low temperatures, which however prints characteristics distinct from the fruits of these regions, highlighting the need for further studies. For color analysis, a colorimeter was used (brand Konica Minolta, model Sensy CR 400) and the color expressed by the rectangular coordinate system L· a· b· (CIE, 1986), where L· = percentage of brightness values (0% = dark and 100% = white), a· = red (+) or green (-) colors and b· = yellow (+) or blue (-) colors. For chemical analysis, ascorbic acid was evaluated (or vitamin C), determined by titration with 2.6-dichlorephenol-indophenol (modification from Benassi & Antunes, 1988) and with results expressed in mg of ascorbic acid per 100 mL-1 ofjuice.